Diameter = 60mm
Connection = 28mm
NOTE: The insert may need to be modified or removed, as follows: For mopeds with power 0.8~1.5hp (25~30km/h) no action is needed.
For higher power, holes should be drilled according to picture 2. Hole size depends on how high power the moped has. We recommend that you try your hand at it.
When mounting on mopeds with a 4-stroke engine, the insert must be removed