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Started by wildmanwill at 09-18-2009 5:34 AM. Topic has 93 replies.

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   09-18-2009, 5:34 AM
wildmanwill is not online. Last active: 7/23/2010 4:09:54 PM wildmanwill



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Joined on 05-25-2008
Chester County, Pennsylvania
Posts 4,034
Re: Quick Reference Info - Must read for New and old Members
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How post active clickable links?

http://choppercharles.com/cs/forums/139515/ShowPost.aspx



1983 CX650 Turbo
1982 CX500 Custom
Donating Member

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   09-18-2009, 6:09 AM
spanish bandit is not online. Last active: 7/22/2010 9:40:55 PM spanish bandit



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Joined on 02-12-2009
southern spain
Posts 5,010
Re: Quick Reference Info - Must read for New and old Members
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 wildmanwill wrote:
How post active clickable links?

http://choppercharles.com/cs/forums/139515/ShowPost.aspx



that was quick.......fastmanwill....lol

when i feel the need,i do it,llego,ve 60,s
-----------------------------

2008.1982 honda gli silverwing [uk model ]
2010.1981 honda gli silverwing [uk model ]


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   09-18-2009, 7:20 PM
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Joined on 03-02-2006
Kawartha Lakes, Ontario
Posts 1,899
Re: Quick Reference Info - Must read for New and old Members
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Anyone know where the info about using an automotive fan switch in a 650 rad is?
Mr. Honda ('83 GL1000/Dnepr) summer
The Famous Eccles ('84 GX650EI/Velorex700) winter
WHY I HAVEN"T BEEN AROUND MUCH LATELY
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   10-03-2009, 5:46 AM
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Joined on 03-02-2006
Kawartha Lakes, Ontario
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Re: Quick Reference Info - Must read for New and old Members
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I figured it out. It's the same switch as a 1980 Civic.

More details here: http://choppercharles.com/cs/forums/143130/ShowPost.aspx#143130


Mr. Honda ('83 GL1000/Dnepr) summer
The Famous Eccles ('84 GX650EI/Velorex700) winter
WHY I HAVEN"T BEEN AROUND MUCH LATELY
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   10-12-2009, 10:54 AM
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Joined on 04-22-2006
Santa Rosa, CA
Posts 1,585
Lazy starter syndrome fix
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http://choppercharles.com/cs/forums/144764/ShowPost.aspx

http://australiancx.asn.au/forum/index.php?topic=4459.0

CX500 Turbo, GL650I, Two CX650E's, and one Crown Jewel of the CX line- CX650T.

Why do I own five CX/GL bikes? Ask an alcoholic why he drinks.

Donating Member.
Sold: 1981 CX500D, 2- 1982 CX500T's, 1983 CX650C.
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   10-23-2009, 1:28 PM
Timothy_D is not online. Last active: 7/23/2010 8:55:41 PM Timothy_D



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Joined on 04-22-2006
Santa Rosa, CA
Posts 1,585
Valve Guides
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CX650 / GL650 valve guide is the same as a 1300cc Honda car engine.
CX500 Turbo, GL650I, Two CX650E's, and one Crown Jewel of the CX line- CX650T.

Why do I own five CX/GL bikes? Ask an alcoholic why he drinks.

Donating Member.
Sold: 1981 CX500D, 2- 1982 CX500T's, 1983 CX650C.
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   10-26-2009, 2:58 PM
Timothy_D is not online. Last active: 7/23/2010 8:55:41 PM Timothy_D



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Joined on 04-22-2006
Santa Rosa, CA
Posts 1,585
cx650 running on gm hei modules
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Http://webpages.charter.net/n8nxf/HEI-CX650C.pdf
CX500 Turbo, GL650I, Two CX650E's, and one Crown Jewel of the CX line- CX650T.

Why do I own five CX/GL bikes? Ask an alcoholic why he drinks.

Donating Member.
Sold: 1981 CX500D, 2- 1982 CX500T's, 1983 CX650C.
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   10-26-2009, 11:43 PM
spanish bandit is not online. Last active: 7/22/2010 9:40:55 PM spanish bandit



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southern spain
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Re: cx650 running on gm hei modules
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 Timothy_D wrote:
Http://webpages.charter.net/n8nxf/HEI-CX650C.pdf

timothy wrote....Http://webpages.charter.net/n8nxf/HEI-CX650C.pdf

when i feel the need,i do it,llego,ve 60,s
-----------------------------

2008.1982 honda gli silverwing [uk model ]
2010.1981 honda gli silverwing [uk model ]


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   11-04-2009, 2:13 PM
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Joined on 08-13-2009
Grand Rapids, Michigan
Posts 621
Re: Quick Reference Info - Must read for New and old Members
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Thanks Blindstitch.  You created a great resourceful library.  Maybe I missed it but I was looking to download the gl650i service manual.

It is probably possible but very time consuming to add an index to your library.

1971 Yamaha 360
1977 Xr75
1973 Cl350
1980 cx500 custom
1983 gl650i
1969 Norton Commando Fastback 750 project (x2)
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   11-04-2009, 3:34 PM
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Joined on 03-14-2009
Greenfield Wisconsin
Posts 9,862
Re: Quick Reference Info - Must read for New and old Members
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Maybe there's one in the drop io but i'm not sure.

1979 CX500 Supertanker
ATGATT makes riding a bike like a sled easier.

Quick Reference
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   11-10-2009, 1:24 PM
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Joined on 06-23-2007
Boston, MA
Posts 1,547
Re: Quick Reference Info - Must read for New and old Members
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Fork sizes and possible non-OEM units for replacement and customization.

http://choppercharles.com/cs/forums/110567/ShowPost.aspx

1978 CX500 - I live on a one-way street that's also a dead end. I'm not sure how I got here, or how I'm going to get out.
Four wheels move the body; Two wheels move the Soul.
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   11-25-2009, 4:53 AM
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Joined on 11-21-2009
Southern Suburbs, South Australia
Posts 9
Re: Quick Reference Info - Must read for New and old Members
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This is great guys.  Many thanks.  Bookmarked.

Stay Upright.

'80 CX500 (Bobber project)
'78 SR500 (Being rebuilt)

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   11-28-2009, 10:52 PM
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Joined on 11-28-2009
El Paso, TX
Posts 14
Re: Quick Reference Info - Must read for New and old Members
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has been said but bears repeating...thanks for taking the time to supply MUCH NEEDED info

you are appreciated


81 Honda GL 500 Interstate
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   12-22-2009, 4:24 AM
spanish bandit is not online. Last active: 7/22/2010 9:40:55 PM spanish bandit



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Joined on 02-12-2009
southern spain
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Re: Quick Reference Info - Must read for New and old Members
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hi don,i know the 500 o-ring list is available,i couldnt see the one for the 650[perhaps my eyes are getting worse]lol
here it is if you want it.http://australiancx.asn.au/forum/index.php?action=dlattach;topic=637.0;attach=402
thanks to seagrass

when i feel the need,i do it,llego,ve 60,s
-----------------------------

2008.1982 honda gli silverwing [uk model ]
2010.1981 honda gli silverwing [uk model ]


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   01-05-2010, 11:59 AM
wildmanwill is not online. Last active: 7/23/2010 4:09:54 PM wildmanwill



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Joined on 05-25-2008
Chester County, Pennsylvania
Posts 4,034
Re: Quick Reference Info - Must read for New and old Members
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Bandit, your link is requiring a login to view whatever it is


Starter Clutch Problems - Torx Bolts, etc

http://australiancx.asn.au/forum/index.php?topic=75.0

http://choppercharles.com/cs/forums/86435/ShowPost.aspx

http://choppercharles.com/cs/forums/79419/ShowPost.aspx


1983 CX650 Turbo
1982 CX500 Custom
Donating Member

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   01-06-2010, 1:34 AM
spanish bandit is not online. Last active: 7/22/2010 9:40:55 PM spanish bandit



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Joined on 02-12-2009
southern spain
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Re: Quick Reference Info - Must read for New and old Members
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 wildmanwill wrote:
Bandit, your link is requiring a login to view whatever it is


Starter Clutch Problems - Torx Bolts, etc

http://australiancx.asn.au/forum/index.php?topic=75.0

http://choppercharles.com/cs/forums/86435/ShowPost.aspx

http://choppercharles.com/cs/forums/79419/ShowPost.aspx


thanks will,it opens for me ok,ill try another way.

when i feel the need,i do it,llego,ve 60,s
-----------------------------

2008.1982 honda gli silverwing [uk model ]
2010.1981 honda gli silverwing [uk model ]


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   01-06-2010, 1:36 AM
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Joined on 02-12-2009
southern spain
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Re: Quick Reference Info - Must read for New and old Members
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O Ring list for CX650
Size Location No
Required
21.9 x 2.3 mm Water pipes 4
91302-415-003 (Honda) Water pipe to water pump seal 1
53.8 x 3.1 mm Thermostat in housing 1
23.0 x 2.8 mm Water elbows to head 2
6.9 x 1.5 mm (V) Oil orifice, block to head 2
40.0 x 2.4 mm Carby to head 2
81.0 x 4.5 mm Oil filter to front cover 1
15.0 x 2.5 mm (V) Oil filter bolt 1
15 x 2.5 mm (V) Oil pump screen to pump 1
14.0 x 2.5 mm (M)(V) Oil delivery inside engine 4
24.4 x 3.1 mm Starter to rear cover 1
23.0 x 2.8 mm Water ways, back cover to block 2
22.0 x 3.0 mm (V) Dipstick 1
8.0 x 2.0 mm (M)(V) Oil orifice to gearbox 1
8.2 x 1.5 mm Oil Jet to crankshaft cover 1
27.5 x 3.1 mm (M) Engine screw in inspection covers 2
11.8 x 2.4mm (V) Front cover oil transfer pipe 2
60 x 1.4mm Starter, rear casing 1
13.5 x 1.4 mm Thermo switch into housing 1
30.8 x 3.1 mm (M) Final Drive oil filler cover 1
35.5 (or 35.2) x 2.4 mm Drive shaft 1
56.5 x 2.0 mm Drive shaft 1
62.7 x 4 mm Final drive spline (diff to rear wheel) 1
46.5 x 3.5 mm Final drive spline (rear wheel) 1
41 x 5.0 mm Fuel tank sender 1
14.8 x 2.4 mm Rear Brake Master Cylinder 1
(M) Denotes measured
O ring thickness. Thickness not specified in Honda parts list
(V) Viton O Rings (not nitrile rubber) should be used due to heat
(Honda) Genuine Honda part

if this is already posted in one of the drop id. for the 650,then ill delete

when i feel the need,i do it,llego,ve 60,s
-----------------------------

2008.1982 honda gli silverwing [uk model ]
2010.1981 honda gli silverwing [uk model ]


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   01-11-2010, 9:45 PM
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Joined on 01-01-2010
Missoula, Montana USA
Posts 140
Re: Quick Reference Info - Must read for New and old Members
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Hell, this whole web site is very valuable for CX/GL owners. I'm a couple of years late in finding you. Thanks to all (collectively) who make this site what it is. Clifford commodore97210@yahoo.com
1980 Honda CX500 Custom "Blackie"
1979 Honda CX500 Deluxe "Whitie" rebuild project
1978 VW Camper ASI/Riviera Plan 1 MP (Money-Pit)
1974 VW Super Beetle FUGLY 1915cc Screamer
2000 Chevy Express Van "Great White" Tow Vehicle
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   02-07-2010, 3:23 PM
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Lake District ENGLAND
Posts 8
Re: Quick Reference Info - Must read for New and old Members
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FANTASTIC EFFORTS Stitch!!

I for one know the kinda level of work that goes in to something like this - It takes "PASSION", "EFFORT" "DEDICATION" and all for the benefit of "Brother" CX-GLers

A MASSIVE CHEAR for Stich!

Although new on here - Im well known through out the UK Club and have been heavily involved for 8 years now and had to do somewhat similar for different projects!

With these kinda efforts the CX-GL will live forever!!

Respectful SHUGGY
If at first you DONT! succeed - - "SKY DIVING" is NOT for YOU!

SAVE ENERGY!!!
Make love Slowly!

Bikes
GL400 Wing Custom
CX500Z
CX500A
CX500 Eurosport
GL500 CUSTOM(Only 7000 miles)
GL500 Silverwing
GL700 Wing Interstate
AND RARER others!
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   02-23-2010, 10:38 PM
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Joined on 11-22-2009
Santa Cruz, CA
Posts 14
Re: Quick Reference Info - Must read for New and old Members
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I just want to be included on this thread.  Thanks all!

1980 Honda CX500 C
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   03-26-2010, 8:56 AM
lucky is not online. Last active: 7/14/2010 6:07:18 PM lucky



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Joined on 03-06-2009
kingman az age 26
Posts 1,443
Re: Quick Reference Info - Must read for New and old Members
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this is just a bump

1982 honda cx500c
1979 honda xr185 dirt bike
If you can read this thank a TEACHER If you're reading this in ENGLISH thank a SOLDIER
http://globalcxglvtwins.hostingdelivered.com/

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   03-26-2010, 11:23 AM
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Joined on 05-09-2006
Las Vegas, NV
Posts 1,264
Re: Quick Reference Info - Must read for New and old Members
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 lucky wrote:
this is just a bump


You know it is "pinned" right?

Always on top.

Peace & Light

>^..^<
..........
'83 GL650swi "My Little Grey Lady"
'82 GL500swi parts bike
'78 DT175
'86 LS650 Milady's bike
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   03-26-2010, 6:21 PM
lucky is not online. Last active: 7/14/2010 6:07:18 PM lucky



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Joined on 03-06-2009
kingman az age 26
Posts 1,443
Re: Quick Reference Info - Must read for New and old Members
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i know that panther but en-light of all the new members i thought that they would see this and then maybe just maybe read it

1982 honda cx500c
1979 honda xr185 dirt bike
If you can read this thank a TEACHER If you're reading this in ENGLISH thank a SOLDIER
http://globalcxglvtwins.hostingdelivered.com/

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   04-10-2010, 6:54 AM
Joel is not online. Last active: 7/22/2010 3:06:03 PM Joel



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Joined on 08-13-2009
Grand Rapids, Michigan
Posts 621
Re: Quick Reference Info - Must read for New and old Members
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Has this post slid down the pile of post.  I thought it was pinned too.  I would hate to loose this post.  I'm thumbing through this quit a bit.
1971 Yamaha 360
1977 Xr75
1973 Cl350
1980 cx500 custom
1983 gl650i
1969 Norton Commando Fastback 750 project (x2)
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   04-10-2010, 7:53 AM
Blindstitch is not online. Last active: 7/22/2010 2:52:31 AM Blindstitch



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Joined on 03-14-2009
Greenfield Wisconsin
Posts 9,862
Re: Quick Reference Info - Must read for New and old Members
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Damn now it's unpinned again. Someone contact charles. I'm off to chicago.

1979 CX500 Supertanker
ATGATT makes riding a bike like a sled easier.

Quick Reference
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   04-10-2010, 7:39 PM
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Joined on 09-08-2007
Coon Rapids Minnesota
Posts 593
Re: Quick Reference Info - Must read for New and old Members
Reply Quote
Bump to move it up.......

Greg

1982 GL 500I "Red" (Wing)
1978 CX 500 Now at a new home

Minnesota

Ride Safe, Ride Fast, Ride Far


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   04-11-2010, 10:14 AM
spanish bandit is not online. Last active: 7/22/2010 9:40:55 PM spanish bandit



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Joined on 02-12-2009
southern spain
Posts 5,010
Re: Quick Reference Info - Must read for New and old Members
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im home,had a great ride out,
just putting this in its place.
just had an odd thought.............perhaps this would get read more if it bounced up and down.
it will always get bounced up,thats for sure

when i feel the need,i do it,llego,ve 60,s
-----------------------------

2008.1982 honda gli silverwing [uk model ]
2010.1981 honda gli silverwing [uk model ]


   Report 
   04-11-2010, 1:08 PM
Blindstitch is not online. Last active: 7/22/2010 2:52:31 AM Blindstitch



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Joined on 03-14-2009
Greenfield Wisconsin
Posts 9,862
Re: Quick Reference Info - Must read for New and old Members
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Only problem is once it hits the second page it's lost.

1979 CX500 Supertanker
ATGATT makes riding a bike like a sled easier.

Quick Reference
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   04-11-2010, 2:22 PM
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Joined on 04-03-2009
Rockdale, Illinois-58
Posts 402
Re: Quick Reference Info - Must read for New and old Members
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Friggin' gremlinz

'81 GL-500
35 1/2k
63,500 to go
LTWRD
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   04-11-2010, 2:28 PM
Blindstitch is not online. Last active: 7/22/2010 2:52:31 AM Blindstitch



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Joined on 03-14-2009
Greenfield Wisconsin
Posts 9,862
Re: Quick Reference Info - Must read for New and old Members
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Someone had to bring up a software upgrade and now the demons of this sight started moving stuff around. Guess that's why there is a back up over on sheps forum and the link on my address.

1979 CX500 Supertanker
ATGATT makes riding a bike like a sled easier.

Quick Reference
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   04-11-2010, 2:57 PM
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Joined on 04-03-2009
Rockdale, Illinois-58
Posts 402
Re: Quick Reference Info - Must read for New and old Members
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HATE when that happens!.....Upsets the entire balance of the universe!

'81 GL-500
35 1/2k
63,500 to go
LTWRD
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   04-12-2010, 5:01 AM
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Joined on 04-12-2009
Kitchener, Ontario, Canada
Posts 202
Re: Quick Reference Info - Must read for New and old Members
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Bumpity bump bump.
(thanks Wayne)
1982 GL500 Silverfish - It's alive!
1972 Bonneville - overdue for an overhaul
1971 Tiger - parts bike/future project

"An object at rest cannot be stopped!" -The Evil Midnight Bomber What Bombs At Midnight
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   04-12-2010, 8:17 PM
Blindstitch is not online. Last active: 7/22/2010 2:52:31 AM Blindstitch



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Joined on 03-14-2009
Greenfield Wisconsin
Posts 9,862
Re: Quick Reference Info - Must read for New and old Members
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Thanks Charles for locking this back up at the top.

1979 CX500 Supertanker
ATGATT makes riding a bike like a sled easier.

Quick Reference
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   04-25-2010, 1:57 PM
Shep is online. Last active: 7/25/2010 2:40:38 AM Shep



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Joined on 01-30-2007
UK.2x1980CX500A
Posts 7,647
Alternative 28mm Mechanincal seal
Reply Quote
http://globalcxglvtwins.hostingdelivered.com/viewtopic.php?f=7&t=355
My Music

http://www.reverbnation.com/pauldouglas/

Join Just In Case :)
http://globalcxglvtwins.hostingdelivered.com/

Id quot circumiret, circumveniat

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   04-28-2010, 9:18 AM
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Joined on 04-22-2006
Santa Rosa, CA
Posts 1,585
Re: Alternative 28mm Mechanincal seal
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Color Match to GL650 "Nimbus Gray"
http://choppercharles.com/cs/forums/188173/ShowPost.aspx
CX500 Turbo, GL650I, Two CX650E's, and one Crown Jewel of the CX line- CX650T.

Why do I own five CX/GL bikes? Ask an alcoholic why he drinks.

Donating Member.
Sold: 1981 CX500D, 2- 1982 CX500T's, 1983 CX650C.
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   06-24-2010, 12:41 PM
Timothy_D is not online. Last active: 7/23/2010 8:55:41 PM Timothy_D



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Joined on 04-22-2006
Santa Rosa, CA
Posts 1,585
RADIAL TIRES FOR CX FITMENT
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FRONT TIRE (Turbo, and Eurosport models only): 110/80/18
Michelin Pilot Road 2 Sport Touring
Avon Storm AV55 ST (W rated to 168 mph)
Metzler Roadtec Z6 Interact (W rated)
Bridgestone Battlaxx BT23 (ZR Rated)

REAR TIRE: 130/80/17 (Turbo models only)
Metzler MEZ2 Sport Touring (design rim for this tire is 3.5" for the 05-09 Triumph Bonneville and Thruxton)
There might be carcass warp issues.


CX500 Turbo, GL650I, Two CX650E's, and one Crown Jewel of the CX line- CX650T.

Why do I own five CX/GL bikes? Ask an alcoholic why he drinks.

Donating Member.
Sold: 1981 CX500D, 2- 1982 CX500T's, 1983 CX650C.
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   06-24-2010, 3:25 PM
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Joined on 03-02-2006
Kawartha Lakes, Ontario
Posts 1,899
Re: RADIAL TIRES FOR CX FITMENT
Reply Quote
NOTE: Tim has done his homework and I did not. The specific tires he mentions are suitable for use on the specific rims he recommends them for.

I will leave my original comments below intact, though, because they explain why most radial tires are not suitable for use on CX/GL bikes



It is unsafe to mount radial motorcycle tires on rims designed for bias ply tires.

Bias ply tires have the carcass belting applied diagonally (on the bias) in order to produce relatively stiff sidewalls in order to control sideways (lateral) deflection when the bike is leaned over.
Bias ply tires generally have aspect ratios in the 80-100% range (eg. 140/90-16, 100/80-18). A low profile bias ply tire may have a 70% aspect ratio.
They are typically designed to produce the correct tread profile when mounted on rims with widths of about 60% of the tire width. For example, a 130 section tire mounted on a 3" rim.


Radial tires have the carcass belting applied at 90 degrees and 0 degrees. This controls tread deflection better and runs cooler, but produces more flexible sidewalls. In order to provide lateral stability, they are made with much shorter sidewalls and have aspect ratios as low as 40% (eg. 280/40-15).
Radials require rim widths as great as 80% of the tire width or higher to produce the correct profile.


If a tire with short, soft sidewalls is mounted on a rim that is much narrower than it is designed for, the profile will be far from ideal.
Add this to a chassis that was designed to work properly with bias ply tires, and you can see why this is not a good idea.

From Dunlop's Q&A page:
"Bias and radial tires have significantly different dynamic properties. They deflect differently, create different cornering forces, have different damping characteristics, as well as other differences. In order for radial tires to be introduced into the two-wheel market, it was necessary to change certain characteristics of the motorcycle. The introduction of the radial tire led to such things as modified frames, new steering geometries and suspensions. Therefore, it is recommended that a motorcycle be used with the type of tire construction that it came with originally."
http://www.dunlopmotorcycle.com/infocenter_faq.asp


Mr. Honda ('83 GL1000/Dnepr) summer
The Famous Eccles ('84 GX650EI/Velorex700) winter
WHY I HAVEN"T BEEN AROUND MUCH LATELY
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   06-24-2010, 4:24 PM
Timothy_D is not online. Last active: 7/23/2010 8:55:41 PM Timothy_D



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Joined on 04-22-2006
Santa Rosa, CA
Posts 1,585
Re: RADIAL TIRES FOR CX FITMENT
Reply Quote
The tire companies have to tell you this to keep from getting into lawsuits.
This rule applies more to the bikes from the 60's and 70's than the bikes from the 80's

There is a community of Honda Magna and Sabre (V-45 and V-65) riders that have converted to radials, and there are some exceptional reviews of improved handling performance, improved fuel mileage, ride comfort, and tire longevity.
Some of them have been running radial tires since 1993.
Another excerpt I have run across is from a VF750F Interceptor rider who converted to radials.

Because the CX is a stressed member frame, it is far more solid than its other contemporaries from the early 80's.
The 37mm forks aren't as strong as a modern bike's forks, but when braced together, they aren't slouches either.
I can't speak to the Eurosport's smaller steel swingarm's ability to handle flex, but the turbo's aluminum swingarm is exceptionally strong.
With the advent of Race Tech cartridge emulators, and aftermarket rear shocks from companies like Hagon, our outdated suspension becomes modern as well.
I don't see any reason not to run the radials on a turbo.

CX500 Turbo, GL650I, Two CX650E's, and one Crown Jewel of the CX line- CX650T.

Why do I own five CX/GL bikes? Ask an alcoholic why he drinks.

Donating Member.
Sold: 1981 CX500D, 2- 1982 CX500T's, 1983 CX650C.
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   06-24-2010, 10:37 PM
Sidecar Bob is not online. Last active: 7/22/2010 3:09:45 AM Sidecar Bob



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Kawartha Lakes, Ontario
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Re: RADIAL TIRES FOR CX FITMENT
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And there are lots of Valkyrie & Hyabusa owners that use car tires on the rear, but that doesn't make it right.

None of the factors you mention have anything to do with why you shouldn't use radials on a CX/GL. The important factor is that the rims are not wide enough for radial tires. Running any tire on a rim that is narrower than it was designed for can result in the tire's profile being distorted enough to actually produce a smaller contact patch. That goes for bias ply tires too, but it is especially likely to cause a problem with radials because they are designed for such wide rims in the first place.

Now, if you were to change to wider rims, radial tires would be fine.

Mr. Honda ('83 GL1000/Dnepr) summer
The Famous Eccles ('84 GX650EI/Velorex700) winter
WHY I HAVEN"T BEEN AROUND MUCH LATELY
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   06-25-2010, 9:13 AM
Timothy_D is not online. Last active: 7/23/2010 8:55:41 PM Timothy_D



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Joined on 04-22-2006
Santa Rosa, CA
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Re: RADIAL TIRES FOR CX FITMENT
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The design rim for a radial 130/80/17 is 3.5"

Design rim for a 110/80/18 is 2.5;" I believe that the front rim of an E and T is 2.15."
1/3 of an inch should be close enough to run without any warp issues.

3/4 of an inch on the rear might be pushing it for a 130, but certainly not for a 120.

CX500 Turbo, GL650I, Two CX650E's, and one Crown Jewel of the CX line- CX650T.

Why do I own five CX/GL bikes? Ask an alcoholic why he drinks.

Donating Member.
Sold: 1981 CX500D, 2- 1982 CX500T's, 1983 CX650C.
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   06-25-2010, 2:44 PM
Timothy_D is not online. Last active: 7/23/2010 8:55:41 PM Timothy_D



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Santa Rosa, CA
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Re: RADIAL TIRES FOR CX FITMENT
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To clarify once and for all:
I have been in contact with Metzeler Consumer Affairs, and received an e-mail from them today:


Hello

All tires have a range of permissible rims regardless if they are radial or bias ply tires. Please use the attached brochure to see the tire specs, suggested fitments, and other important technical data. Thanks for the e-mail and have a great weekend.

NA Metzeler Consumer Affairs
877 202-4993
www.us.metzelermoto.com


I searched through the brochure, and according to Metzeler's PDF:
The design rim for the ME Z2 rear tire is 3," and its permissible rim width is 2.5"-3.5." 
On a turbo, with a 2.75" rim, there is no conflict in rim size.  We absolutely can run this tire with no issues.

As to the front wheel, I will know more when I get home.  Frankly, I cannot remember if the Turbo/Eurosport front rim is a 2.15" or a 2.5"


CX500 Turbo, GL650I, Two CX650E's, and one Crown Jewel of the CX line- CX650T.

Why do I own five CX/GL bikes? Ask an alcoholic why he drinks.

Donating Member.
Sold: 1981 CX500D, 2- 1982 CX500T's, 1983 CX650C.
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   06-25-2010, 8:11 PM
Sidecar Bob is not online. Last active: 7/22/2010 3:09:45 AM Sidecar Bob



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Kawartha Lakes, Ontario
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Re: RADIAL TIRES FOR CX FITMENT
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Are you sure that you are reading the brochure correctly? A 3" (76mm) wide rim seems a bit narrow for a 130 section radial at only 58% (pretty close to the typical figure for bias ply tires.

I checked Metzler's website and the PDF they have there does not mention rim width at all and only indicates one size of ME Z2 exists.
Hmmmm.......  Could it be that someone has finally designed a radial tire to fit rims that were made for bias ply tires?

I did not realize that turbos had 17" rear wheels. The E models came with 18" wheels front & rear. The E front wheel on my 650 is a 2.50-18. I don't know what the rear was because it was bent when I got the bike and I rebuilt with CX/GL500 parts so I have a CX500 rear wheel. NOTE: I do not recommend this wheel combination (rear wheel narrower than front) for 2 wheeled use, but on a sidecar outfit it can be made to work.

BTW: Speaking of distorting the profile by mounting a tire on a non-recommended rim, I run a 3.50-18 tire on my 2.50" front wheel and it produces a nearly flat profile with a really large contact patch that works well on a sidecar outfit but wouldn't be good on a bike that leans.

Mr. Honda ('83 GL1000/Dnepr) summer
The Famous Eccles ('84 GX650EI/Velorex700) winter
WHY I HAVEN"T BEEN AROUND MUCH LATELY
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   06-26-2010, 11:11 AM
Timothy_D is not online. Last active: 7/23/2010 8:55:41 PM Timothy_D



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Joined on 04-22-2006
Santa Rosa, CA
Posts 1,585
Re: RADIAL TIRES FOR CX FITMENT
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I can send you the PDF that they sent me if you like.

The Metzeler ME Z2 was designed specifically for the Triumph Thruxton and Bonneville "retro" bikes.  Narrow rims front and rear, and old technology suspension.

Also, I checked my rims last night, the front rim of a Turbo and Eurosport is 2.5", which means that the 110/80/18 radials are also acceptable per the Metzeler PDF.

CX500 Turbo, GL650I, Two CX650E's, and one Crown Jewel of the CX line- CX650T.

Why do I own five CX/GL bikes? Ask an alcoholic why he drinks.

Donating Member.
Sold: 1981 CX500D, 2- 1982 CX500T's, 1983 CX650C.
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   06-26-2010, 1:27 PM
Sidecar Bob is not online. Last active: 7/22/2010 3:09:45 AM Sidecar Bob



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Joined on 03-02-2006
Kawartha Lakes, Ontario
Posts 1,899
Re: RADIAL TIRES FOR CX FITMENT
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That's OK - if you checked it and read the same thing again, that's what it says.

I will have to amend my comments above to specifically exclude these tire and rim combinations.

BUT I would caution others reading this to remember that mounting radials on the narrower rims that are standard on all models in this range except Eurosport and Turbo models can be dangerous.

Mr. Honda ('83 GL1000/Dnepr) summer
The Famous Eccles ('84 GX650EI/Velorex700) winter
WHY I HAVEN"T BEEN AROUND MUCH LATELY
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