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gearing up the suzuki gt250

Posted: Fri Nov 27, 2020 7:39 am
by dollydog
while i've been building this monoshock and reed valve gt250 i've come across alsorts of sprocket sizes while i've been looking for the correct ones for this. anyway, to gear up a gt250 and use a lighter [520] chain, use a 39 tooth sprocket from a ts185, you need the one with 12 bolt holes in it, 6 x 8mm and 6 x 10mm. then get a 15 tooth front sprocket from a suzuki rm465 and ratio is down to 2.6 from 2.93. bit slower on acceleration, but quicker on the top end. in case anybody's interested. yes, they fit perfectly :o
cheers, dd.

Re: gearing up the suzuki gt250

Posted: Sun Nov 29, 2020 3:20 am
by daxman
Hi DD

Good info thanks. This mono-reed 250 project must have passed me by. Got any pics?

Cheers
Dax

Re: gearing up the suzuki gt250

Posted: Sun Nov 29, 2020 1:03 pm
by Alan H
All is revealed here - https://2strokeforum.com , and Ade (dollydog) is here - https://2strokeforum.com/user/2118/recent_threads where you can trawl through all the stuff he posts.
Please do a nice intro if you visit and decide to join,.
The moderator on there is a bit of a testy old sod at times..... :twisted:


8)

Re: gearing up the suzuki gt250

Posted: Sun Nov 29, 2020 1:39 pm
by PaulD
Alan H wrote: Sun Nov 29, 2020 1:03 pm All is revealed here - https://2strokeforum.com , and Ade (dollydog) is here - https://2strokeforum.com/user/2118/recent_threads where you can trawl through all the stuff he posts.
Please do a nice intro if you visit and decide to join,.
The moderator on there is a bit of a testy old sod at times..... :twisted:


8)
I wonder how you know that then? :roll:

Re: gearing up the suzuki gt250

Posted: Sun Nov 29, 2020 5:14 pm
by dollydog
for once i agree with him :D
trawl being the operative word. at the last look it was 31 pages long - most of that is the engine. did i mention it was also now a monoshock? i love trying different things - and upsetting the purists :D
cheers, dd.