how fast do you actually go with a gear box? how fast do you go with the shifter kit? would a eight tooth front sprocket on the motor make you go faster? how do i port my intake and exhaust stuff to make it quicker? pics please.. how do i quiet down the intake noise? for sale or to make...proof? what is the best way to quiet down the clutch gear noise? what is the best chain tensioner i can buy to quiet it down? i have made some mods and posted pics on my albums found at my profile.. MotoredBikes.com: Motorized Bicycle Forum - thine82's Album: check out the bikes i have built .. A RIDING PACK..