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Old 11-28-2013, 01:58 AM
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rogergendron1 rogergendron1 is offline
Motorized Bicycle Elite Member
Join Date: Sep 2013
Location: woburn ma
Posts: 882
Default Re: what are some of the best mods to do?

Originally Posted by MotorBicycleRacing View Post
44 tooth at 7000 = 30 mph
40 tooth at 7000 = 33 mph = 3 mph difference.
36 tooth at 7000 = 36.7 mph = 6.7 mph difference
thats exactly correct, i was tossing out rough estamates bassed on the pluss one minus one tooth = plus one minus one mph 5mph or 3 mph whatever close enough lol

the 40 t and 41 tooth seems to be where its at though and they should come stock with all kits

it should aslo be known that the ability to get to a certain rpm my change based on gear ratio also ! what good would a 36t at 7,000 rpms do if your motor cant spin at 7,000 rpms under the load of the smaller gear and rider wieght ? lets say it tops out at 5,700 due to load ? when a lil larger gear may ease the load and allow higher rev's say 7,000 with a 41 or 40

gearing and a free flowing exhaust are the most important factors in making a stock motor GO

i am a rambling maniac lol i know how to preformance tune a motor but fall short on explanations and teachings, listen to folks like motorbicycleraceing and mapbike and maniac57 they know there stuff
here to stay and compleatly insane ! deal with it lol

Last edited by rogergendron1; 11-28-2013 at 02:08 AM.
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