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2014 New design !! 1125cc 4 stroke bicycle engine kit with lithium battery

125cc 4 stroke bicycle engine kit : Brushless gearless hub motor High quality High torque High Efficiency

Motorized bicycle SkyHawk Stage III 49cc 4 cycle gas engine kit

Stage III Gear Box 4 cycle gas engine kit, Sold exclusively by China GAS direct to qualified wholesale accounts. ( WD's)

Hot sale!ORK-POWERG High-Tech 49cc bicycle 4 stroke engine kit

bicycle 4 stroke engine kit 1) 4 stroke engine 2) 50cc,60cc,80cc 3) top quality with competitive price