101 Octane 09210942 CrankshaftRef : OCTA00553A / 09210942

Manufacturer's ref: BT7001-22 — Brand: 101 OCTANE

Crankshaft with 22 teeth designed for 4-stroke engines 50/90 cm³ (GY6, 139QMB/QMA). Sold pre-assembled with main bearings and connecting rod, this crankshaft follows the original mounting for replacement during an engine overhaul or deep maintenance. It includes a 22-tooth oil pump drive sprocket, a version used notably on some recent models (e.g. Rex).

• Compatibility: engines 139QMB/QMA (GY6 50/90cc).
• Sprocket version: 22 teeth — note, there is also a 16-tooth variant on many vehicles.
• Installation note: can be fitted on models accepting the 16-tooth variant if the oil pump and its drive sprocket BT14782 + BT14783 are installed.
• Practical advice: count the teeth on your current sprocket and compare with the provided image before ordering to avoid any compatibility errors.

Suitable for Enduro, Roadster and Urban environments, this crankshaft is aimed at riders who are performing a standard exchange or engine repair on machines such as the MASH X-RIDE 50 (2024), LUXXON XXLINE 50 (2021) or BAJA SC 50 Suncity R (2021). For safe reassembly, check the references and prepare the necessary auxiliary parts (pump and sprocket if changing version).