Scooter 50mm Performance Big Bore Kit with 69mm Valves | Fits: 50cc 4-stroke QMB139 Engines | QualityScooterParts.com
Amazon.com: Glixal ATMT1-008 Performance Big Bore Cylinder Kit GY6 80cc 47mm for 139QMB ATV Scooter Moped Go Kart : Automotive
Big Bore Kit GY6 50cc to 80cc Scooter Moped 139 QMB 139QMB Cylinder Piston Rings - Walmart.com
72cc / 80cc (47mm BORE) KIT FOR SCOOTERS WITH 50cc GY6 MOTORS *64mm VALVES* #3 - gy6racing
High Performance Speed Kit GY6-80cc (47mm). Comes with all parts shown. [100674] : Get 2 It Parts, LLC offers SAME DAY SHIPPING. FAIR PRICING. SOUTH CAROLINA WAREHOUSING.
Amazon.com: Big Bore Kit GY6 50cc to 80cc Scooter Moped 139 QMB 139QMB Cylinder Piston Tao Tao Kazuma : Automotive
Amazon.com: XMT-MOTO Scooter GY6 50CC To 80CC Big Bore Cylinder For VIP Roketa Taotao Baja Silver : Automotive
80cc (High Performance) Cylinder Piston Top End Kit For GY6-50 QMB139 Chinese Scooter Motors. Bore=47mm Requires Head #634585
NCY HIGH PERFORMANCE SUPER TRANSMISSION KIT FOR *50cc 80cc 100cc QMB139 SCOOTERS* - gy6racing
Complete Big Bore Kit MMG 80cc for 50cc 4 Stroke Chinese Scooters: ModCycles