Reading the sprocket change question from "oldtimer" raised a question in my mind. If you want to lower top speed but increase accn. & pulling power on hills which sprocket is it best to change, front or rear to give the least stress to the engine layshaft. (I have a Derbi GPR but Bermuda has a 25 mph speed limit, so I can afford to loose some top speed from this bike, 40 mph to be exact!!!)
I'm thinking a smaller sprocket at the engine would be the least stressful, although I don't think it really makes a difference.
Hi,Tony! If this is roughly the same bike Scott Huvler showed me the other day,it has 12,000 rpm to play with.To increase power with such awesome rpm would require only a minor sprocket change,also due to the 6 speed tranny range.The bike I saw developed 14 h.p. with a 50cc engine.Be careful not to over-rev man!
I wouldn't mess with it. Get yourself a real moped if you want a challenge.
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