35 Chain Sprocket Upgrade Kit With 65 Tooth 54mm Bore And 108 Link Drive Chain For MX650 MX500 SX500 RSF650 Electric Dirt Bike Dirt Rocket McGrath Motocross Performance Boost For Off Road Motorcycle Parts

35 Chain Sprocket Upgrade Kit: 65T Rear, 54mm Bore
✔️ 108-link chain, 65T rear sprocket, 9T/11T/13T motor sprockets

This upgrade kit bundles a 65T rear sprocket (54 mm bore) and a 108-link drive chain to upgrade drive performance on MX650, MX500, SX500, and RSF650 electric dirt bikes and pit bikes. It includes multiple front motor sprockets and all installation hardware for a complete swap.

✅ 108-link drive chain included (35 chain)
✅ 65T rear sprocket, 54 mm bore (2.1"), 200 mm overall diameter (7.87")
✅ Front motor sprockets 9T, 11T, 13T for gearing options
✅ Flywheel adapter, chain breaker, master links, screws, nuts, wrenches included
✅ Compatible with MX650, MX500, SX500, RSF650 electric dirt bikes and pit bikes
✅ Pack: 1 kit with all components listed

💡 What is a chain sprocket upgrade kit used for on electric dirt bikes, and how does it improve performance?

It’s a handy way to tune acceleration, top speed, and climbing by swapping the chain and sprockets to match motor gearing.

- Increases acceleration and hill climbing with optimized gearing - Lets you choose front sprockets (9T/11T/13T) for desired power and speed - Includes chain, sprockets, adapter, and installation tools for a complete upgrade