High Speed 40T 420 Sprocket With 37mm Bore And 6 Hole Mount For Mini Bikes Replacement Gear For Coleman CT100U CC100X RB100 Baja Doodle Bug DB30 Motovox MBX10 Monster Mega Moto MMB80 MMB105 With 212cc Engines
✔️ 40T, 6-bolt mount, 37mm bore, 49mm bolt circle, 165mm OD
This high-speed 420 chain sprocket (40T) with a 37 mm bore and 6-hole mount is designed for mini bikes with 212cc engines and larger. It helps improve acceleration and top speed on DIY builds and off-road rides.
✅ 40-tooth 420 chain compatible sprocket for minibikes
✅ Fits 6-hole mounting with 49 mm bolt circle and 37 mm bore
✅ Overall diameter 165 mm (6.50") with center bore 37 mm
✅ Includes 1x 40T sprocket, 5x master links, 1x 10T, 6x screws, 6x nuts, 1x wrench, 1x 3/16 inch keyway
✅ Color: Black
💡 What is a mini bike sprocket and why is this size handy?
This handy upgrade helps boost throttle response and speed on compact off-road bikes.
- Improves acceleration and top speed on minibikes with 212cc engines
- Efficient power transfer with precise 40T size and 37mm bore
- Includes mounting hardware for quick DIY upgrades