GT250 wheel

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daxman
To the on ramp
Posts: 348
Joined: Thu Nov 07, 2013 1:59 pm
Country: United Kingdom
Suzuki 2-Strokes: A100 GT250 & 4t Yams!
Location: Brussel County, England

GT250 wheel

Post 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
dollydog
Yeah Man, the Interstate
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Country: england
Suzuki 2-Strokes: several gt250 ramairs

Re: GT250 wheel

Post 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.
GTS250 road registered. TS250 engine, Ramair frame.
GT250 big bang road registered. Both pistons fire the same time. USD forks.
GT285 road registered. Overbored - 58mm and TS125 +2 pistons fitted.
GT10 road registered. '65 T10 engine, GT250 frame.
daxman
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Posts: 348
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Suzuki 2-Strokes: A100 GT250 & 4t Yams!
Location: Brussel County, England

Re: GT250 wheel

Post 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.
daxman
To the on ramp
Posts: 348
Joined: Thu Nov 07, 2013 1:59 pm
Country: United Kingdom
Suzuki 2-Strokes: A100 GT250 & 4t Yams!
Location: Brussel County, England

Re: GT250 wheel

Post 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. :?
daxman
To the on ramp
Posts: 348
Joined: Thu Nov 07, 2013 1:59 pm
Country: United Kingdom
Suzuki 2-Strokes: A100 GT250 & 4t Yams!
Location: Brussel County, England

Re: GT250 wheel

Post 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!
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jabcb
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Suzuki 2-Strokes: 69 T350 thru 75 GT750
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Re: GT250 wheel

Post 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.
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
daxman
To the on ramp
Posts: 348
Joined: Thu Nov 07, 2013 1:59 pm
Country: United Kingdom
Suzuki 2-Strokes: A100 GT250 & 4t Yams!
Location: Brussel County, England

Re: GT250 wheel

Post 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?
daxman
To the on ramp
Posts: 348
Joined: Thu Nov 07, 2013 1:59 pm
Country: United Kingdom
Suzuki 2-Strokes: A100 GT250 & 4t Yams!
Location: Brussel County, England

Re: GT250 wheel

Post 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:
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jabcb
Moto GP
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Suzuki 2-Strokes: 69 T350 thru 75 GT750
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Re: GT250 wheel

Post 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.
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
daxman
To the on ramp
Posts: 348
Joined: Thu Nov 07, 2013 1:59 pm
Country: United Kingdom
Suzuki 2-Strokes: A100 GT250 & 4t Yams!
Location: Brussel County, England

Re: GT250 wheel

Post 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'.
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