Driven Racing EVO TECH 420 Front Sprocket – Honda Grom, Monkey 125 & More

Driven Racing EVO TECH 420 Front Sprocket

Upgrade your drivetrain with the Driven Racing EVO TECH 420 Front Sprocket — precision-engineered for mini bikes, pit bikes, and small-displacement street and dirt applications. Made from case-hardened steel and drilled for weight reduction, this sprocket delivers reliable power transfer and long-lasting durability at an unbeatable value.

Features

• Case-Hardened Steel Construction – Superior wear resistance for extended service life
• Lightening Holes – Drilled to reduce overall rotating mass without sacrificing strength
• 420 Chain Pitch – Compatible with standard 420 chain setups
• Wide Tooth Range – 14T–19T for street applications; 12T–16T for dirt applications

Compatibility

• Honda Grom (OG, SF, JC92, 2025+)
• Honda Monkey 125 (1st Gen & 2022+)
• Ohvale GP-0 / GP-2
• VMC and other 420-chain mini moto platforms

Sprocket Selection Guide

• Street Riders: 14T–19T — choose a higher tooth count for more top speed, lower for more acceleration
• Dirt / Track Riders: 12T–16T — optimized for off-road gearing ratios