Can anybody tell me how many teeth are on the front and rear of a stock 90? Thanks
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Can anybody tell me how many teeth are on the front and rear of a stock 90? Thanks
I'm pretty sure 40
2 stroke or 4 stroke?
Stock front sprocket on the 2-stroke is 19T
19 frt,35 rear
Thanks for the reply's guys. Are those numbers for a 4-stroke? That is what I am looking for. I am trying to get my boys 08 DS70 a little quicker. Already did the exhaust, carb, clutch, CDI and now I want do the sprockets. I don't want to spend too much money on it since it will never run with the 2-strokes. But he does run competitively with the series he has been running in he just doesn't have enough to pass. Thanks.
Where are you trying to pass? In the corners or in the straight-aways via a drag race? That will dictate how you tartet your gearing on that 70.
The best chance he would have is through the corners. I don't think he would have much chance on long straights against the 2 stroke's. He is pretty aggressive and runs with them and looks to pass through the corners. I am pretty sure it has a 42 on the rear of it.
I found a very good website with the info:
DS 70 15-42
DS90, DS90X 16-40
With this mods the ds90 take live?Quote:
Originally posted by drtracer27
Thanks for the reply's guys. Are those numbers for a 4-stroke? That is what I am looking for. I am trying to get my boys 08 DS70 a little quicker. Already did the exhaust, carb, clutch, CDI and now I want do the sprockets. I don't want to spend too much money on it since it will never run with the 2-strokes. But he does run competitively with the series he has been running in he just doesn't have enough to pass. Thanks.
I own one stock its the slower atv in the market. I dont now if waste money in this engine or install other engine. With the mods its faster than stock trx 90? Any restriction in variator? Thanks