HIFROM(TM 49cc 60cc 66cc 80cc Engine Motorized Bicycle Pulley Chain Tensioner Bracket 1. The item for 49cc to 80cc 2-stroke motorized bicycles. 2. Easy install and High class quality and very durable 3. Please check pictures and specifications for compatibility 4. HIFROM focus on provide high quality carburetor at fair price: Professional Factory; Professional technical support; if you unsatisfy with our product, you can return to our USA warehouse, no risk.