Tired of pedalling then this is the answer if you still like riding a bicycle. Not quite a motorcycle but lots of people like these engines. Although they're designed for helping struggling cyclists, they can be used for various other things, such as powering a small boat or driving a generator.The manufacturers advertise this engine as 80cc, but it's actually only 69cc.
type - air cooled 2-strokebore - 47mmstroke - 40mmcapacity - 69ccpower - 2.5kW (3.3HP)engine speed - 5000 rpmCompression Ratio - 6:1gear ratio - 18:1
weight - 12.3kglength - 420mmheight - 415mmwidth - 180mmSpeed limit - 30 km/h
OBJ (OBJ, filesize: 1.6 MB), 3DS (3D Studio, filesize: 1.55 MB), WRL (VRML, filesize: 1.5 MB), FBX (Autodesk FBX, filesize: 3.09 MB), DAE (Collada, filesize: 1.61 MB), MAX (Autodesk 3ds Max, filesize: 1.61 MB)