Driven Racing 420 Rear Steel Sprocket – Honda Grom & Monkey 125
Dial in your gearing with the Driven Racing 420 Rear Steel Sprocket, purpose-built for all generations of the Honda Grom and the 2022+ Honda Monkey 125. Crafted from high-quality steel for maximum durability and consistent power transfer, this is a straightforward, reliable upgrade for street riders looking to fine-tune acceleration or top speed.
Features
- Steel Construction – Built to withstand the demands of street and light track use
- 420 Chain Pitch – Direct replacement for stock 420 chain setups
- Multiple Tooth Options – Choose your tooth count to optimize for acceleration or top speed
- Direct Bolt-On Fitment – No modification required for compatible models
Compatibility
- Honda Grom – All years (OG, SF, JC92, 2025+)
- Honda Monkey 125 – 2022 and newer
Gearing Guide
- More teeth (larger sprocket): Increased acceleration, lower top speed
- Fewer teeth (smaller sprocket): Higher top speed, reduced low-end pull
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