50T 40Mm Rear Drive Sprocket For 40 41 420 Chain Beefed Up Heavy Duty Fit 212cc 196cc 6.5HP Mini Bike Go Kart Engines For CT200U BT200X Baja Warrior Trailmaster MB165 MB200 Predator 212
✔️ Heavy-duty steel sprocket, 50T, 80mm bolt circle, 40.5mm bore
This single 50T rear drive sprocket is built to power 40-41-420 chain on small engine bikes and go-karts. It fits 212cc and 196cc models and is compatible with common mini bike lines, including CT200U, BT200X, Trail 200, Baja MB165/MB200, Hensim MB165/MB200, Massimo Trailmaster MB200, and Predator 212 platforms. The sprocket uses rust-resistant screws and an iron self-locking nut to prevent loosening during operation. Please double-check mounting bolt circle (80 mm) and bore (40.5 mm) to ensure a precise fit. Note: this sprocket is designed to fit a wide range of 212cc mini bikes.
✅ 50T teeth for 40-41-420 chain
✅ Bore diameter 40.5 mm (1.59 in)
✅ Bolt circle 80 mm (3.15 in)
✅ Overall diameter 205.5 mm (8.09 in)
✅ Mounting holes 10 mm diameter x4 (0.35 in)
✅ Rust-resistant screws and self-locking nut prevent loosening
💡 What is a rear drive sprocket used for in small engine bikes? This handy drivetrain component transmits engine power through the chain to drive the wheels. 1. It helps set gearing and torque by teeth count and chain size. 2. It keeps the chain aligned to prevent slipping during operation. 3. It lasts through vibration and weather thanks to rust-resistant hardware.