The Heavy Hitter QS165 60h V3 Billet Gear Box Cover is a precision-machined billet aluminum gearbox cover built for the QS165 60h V3 motor. Designed with integrated cooling fins to manage gearbox fluid temps and slightly increase oil capacity, it adds real function where it counts. This is not a cosmetic upgrade.
Fitment:
- QS165 60h V3 Motor
NOTE: You will need to reuse or install a new output shaft seal (47x25x9) and anaerobic gasket maker.
If you're pushing real power through your drivetrain or thrashing your bike on a moto track, the last thing you want is a weak link hiding behind your sprocket. During load testing, this cover withstood over 13,000 lbs of force before reaching distortion. For reference, a typical 520 chain has an ultimate tensile strength of around 6,000 to 9,000 lbs, with a real-world fatigue limit much lower. If something gives under extreme load, the chain likely fails before this cover even thinks about bending. In real riding, shock loads from hard landings and aggressive throttle spikes push the chain closer to its snap point. This cover stays well below its bending threshold. Black anodized finish.