Countershaft; 139QMB

DESCRIPTION: This stock countershaft reduction gear replaces original equipment on CSC go, go MAX, Bella Classic 50, Nitro Sport 50, and Pug 50 scooters, and bikes running 139QMB engines.Original Parts For Scooters SKU 151-54Specifications: Number of Teeth (large gear): 52 Number of Teeth (small gear): 15 Overall Length: 57mm Compatibility: Chicago Scooter Company go Chicago Scooter Company go MAX Chicago Scooter Company Bella Classic 50 Chicago Scooter Company Nitro Sport 50 Chicago Scooter Company Pug 50 139QMB-based 50cc / 80cc engines with the following engine codes: 139QMA 139QMB 1P39QMB 1P39QMA-2 YN139QMB JJ1P39QMB 139FMA-2 BD1P39QMB BN139QMB 147QMD Other QMA models Other QMB models Don’t see your engine listed? If the engine code includes QM or FM, this product is compatible with your vehicle.About CSC: Chicago Scooter Company embodies the spirit of urban mobility with its innovative and stylish lineup of scooters. Designed for city living, their scooters blend functionality, reliability, and modern design, making them the perfect choice for navigating busy streets. Experience the freedom of effortless commuting and explore the city in style with Chicago Scooter Company.

SPECIFICATIONS: Number of Teeth (large gear): 52 Number of Teeth (small gear): 15 Overall Length: 57mm

COMPATIBILITY: Chicago Scooter Company go Chicago Scooter Company go MAX Chicago Scooter Company Bella Classic 50 Chicago Scooter Company Nitro Sport 50 Chicago Scooter Company Pug 50 139QMB-based 50cc / 80cc engines with the following engine codes: 139QMA 139QMB 1P39QMB 1P39QMA-2 YN139QMB JJ1P39QMB 139FMA-2 BD1P39QMB BN139QMB 147QMD Other QMA models Other QMB models Don’t see your engine listed? If the engine code includes “QM” or “FM”, this product is compatible with your vehicle.About CSC: Chicago Scooter Company embodies the spirit of urban mobility with its innovative and stylish lineup of scooters. Designed for city living, their scooters blend functionality, reliability, and modern design, making them the perfect choice for navigating busy streets. Experience the freedom of effortless commuting and explore the city in style with Chicago Scooter Company.

139QMB ENGINES: 139QMB-based 50cc / 80cc engines with the following engine codes: 139QMA 139QMB 1P39QMB 1P39QMA-2 YN139QMB JJ1P39QMB 139FMA-2 BD1P39QMB BN139QMB 147QMD Other QMA models Other QMB models Don’t see your engine listed? If the engine code includes “QM” or “FM”, this product is compatible with your vehicle.About CSC: Chicago Scooter Company embodies the spirit of urban mobility with its innovative and stylish lineup of scooters. Designed for city living, their scooters blend functionality, reliability, and modern design, making them the perfect choice for navigating busy streets. Experience the freedom of effortless commuting and explore the city in style with Chicago Scooter Company.