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GT250 wheel

Posted: Mon Jan 14, 2019 5:38 pm
by daxman
Hi All

Are the front wheels the same across all models K to C? I bought an ebay item, a bit better chrome than the one I have but
it has no provision for 2 discs and the brake disc diameter is small - 265 vs 275 approx. CMSNL only shows the one style with the hub
that can mount a disc on both sides. Is the one i just bought from a Hustler maybe?

Cheers

Re: GT250 wheel

Posted: Mon Jan 14, 2019 7:18 pm
by dollydog
easiest answer to that mate is it's the wrong wheel. how many bolt holes for the disc? if it's 4 then it's probably early x7 or gt185. all wheels from k to a will fit, and 380, and they all have provision for twin discs. not being twin disc, it could be gs or gsx250, but i don't know how many disc holes they have - i've never had one. but gt wheels from 250 up have all been able to fit twin discs :D
cheers, dd.

Re: GT250 wheel

Posted: Tue Jan 15, 2019 4:50 am
by daxman
Yeah, partly my fault should have looked more closely at the pictures.. I'll see if the guy will take a return.. Annoying, it was advertised as GT250 but not end of the world.

Re: GT250 wheel

Posted: Fri Feb 01, 2019 8:46 am
by daxman
Update.. The kind eBay seller swapped the 'wrong' wheel - turns out it was from an early RD. - for front and rear GSX cast wheels which I think I'm happy with :up: . The front has the same 15mm spindle at GT (unlike X7) and disc options both sides so I think it can be made to fit. The rear though is also a 15mm spindle so that presents issues. :?

Re: GT250 wheel

Posted: Sun Feb 03, 2019 2:40 am
by daxman
Update 2: The front Ive been sent is not GSX after all. It's a 19" GS750 etc.. item. Ho hum, might still try and make it fit. Strange how sports bikes in the 80s went front 19" to 16" in a few years before settling on 17" by the 90s.

Update3; Appears to fit without any mods using GT250A spindle spacers and speedo drive. Clock will read low now though!

Re: GT250 wheel

Posted: Sun Feb 03, 2019 6:50 am
by jabcb
Suzuki used the same speedo drive on the GT250A and the GT550A, which has a 19” rim. Back then speedos weren’t expected to be all that accurate.

Re: GT250 wheel

Posted: Sun Feb 03, 2019 4:58 pm
by daxman
jabcb wrote:Suzuki used the same speedo drive on the GT250A and the GT550A, which has a 19” rim. Back then speedos weren’t expected to be all that accurate.
Same drive but different speedos maybe?

Re: GT250 wheel

Posted: Sun Feb 03, 2019 5:03 pm
by daxman
..and lo on the 200th day it was (at last) discovered that the rear wheel from beloved donated machine (was) possessed (by) a 15mm spindle in 17mm ID bearings on the rear wheel and a bodge-ed spacer made from an off-cut off Beelzebub's 19 mm ID tubing... :roll:

Re: GT250 wheel

Posted: Sun Feb 03, 2019 6:55 pm
by jabcb
daxman wrote:
jabcb wrote:Suzuki used the same speedo drive on the GT250A and the GT550A, which has a 19” rim. Back then speedos weren’t expected to be all that accurate.
Same drive but different speedos maybe?
Both use a speedo ratio of 2240 rpm = 60 mph.

Re: GT250 wheel

Posted: Mon Feb 04, 2019 4:57 am
by daxman
jabcb wrote:
daxman wrote:
jabcb wrote:Suzuki used the same speedo drive on the GT250A and the GT550A, which has a 19” rim. Back then speedos weren’t expected to be all that accurate.
Same drive but different speedos maybe?
Both use a speedo ratio of 2240 rpm = 60 mph.
Ah right, so with some careful wheel/tyre measuring and use of pi I could determine which is the most 'accurate'.