This translates to reduce torque on the bottom finish with the engine power curve but equivalent best speed on the very best close. 80cc/66cc 2-Stroke Motorized Bicycle Kits: Hanger: part of frame or an attachment to the frame to which the derailleur is attached (see Derailleur hanger) Triple engines are https://bikeenginetypes72580.get-blogging.com/35558044/a-review-of-bike-engines-explained