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Motorized Bicycle Questions
General motorized bicycle questions and answers.
Questions about 2-Stroke motorized bike engines.
Transmission / Drivetrain
Clutch, sprockets, jackshafts, chains, tensioners, pull start, centrifugal, gear ratios, ect.
CDI, wiring, magneto, head lights, tail lights, indicators, horns, charging systems, speedos ect.
Performance carbs, porting, exhausts, expansion chambers, reed valves, boost bottles, ect.
Questions about 4-Stroke motorized bike engines. Honda, Robin Subaru, EZM, DAX, HuaSheng ect.
Electric bike builds, commercial kits.
Photos & Bicycle Builds
Pictures of motorized bike projects and bike builds.
Post your motorized bike videos here. You can embed youtube videos using the insert video icon.
Frame Mounted Engines
Mounting engines in a bike frame. Brackets, mounting and frame questions. Will the motor fit?
Rack Mounted Engines
Mounting engines on a rack behind the bike, GEBE ect.
Questions and answers about friction drive bicycle systems. Rollers, tires and gear ratio discussion.
Painting, Welding, Bending and Gas Tanks
Painting motorized bike frames and engines. Welding and bending bike frames. Airbrushing and decals. Gas tank fabrication.
Questions and answers about motorized tricycles .
Motorized push trailers to propel your bicycle
Tow behind bicycle trailers
Whizzer Motorized Bicycles
Questions and answers about Whizzer motorized bikes
Antique Motorized Bicycles
Antique Motorized Bicycles, Old Motorcycles, Board Track Racers and Replicas.
Brakes, Tires, Tubes, Wheels, Bearings, Spokes, ect.
The trading place to sell your motorized bicycles and parts.
Motorized bicycle dealer parts, products and specials.
Reviews and ratings of all the well known motorized bicycle engine kit dealers and parts suppliers.
Spare Parts, Tools & Product Developement
Miscellaneous motorized bicycle parts, special tools and product development.
New motorized bicycle forum members tell us a bit about yourself!
Laws, Legislation & Emissions
Motorized bicycle laws in countries around the world.
Laws By State
Races, Events & Group Rides
Motorized bike racing, events and group rides. Meet up and ride with local members.
Travelling, Commuting & Safety
Share your motorized bike rides, adventures, experiences, crashes and safety tips.
Stolen Bicycles & Security
Announce your stolen motorized bicycle so other members can track it down.
Forum Help & Suggestions
Talk about anything.