18 speed mountain bike, motorized. 33cc 2 stroke with a 5 to 1 gear ratio transmission. The bike is chain driven. We are using a t8f chain and sprocket set The rear wheel uses a 72 tooth and the transmission uses a 11 tooth. This is another Boost Bottle Industries build and is for sale for $350
The weight is over the rear wheel. It does not flip back wards, not to mention the engine is very light.adding the gas tank to the other side helps to balance the bike...
mogyver69 1 month ago