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Custom Made 420 pitch for lightweight race conversions or for Grom with CBR 250/300cc engine swaps! Match this up with a 420 chain and rear sprocket for the complete conversion! Running the 420 size chain over the 520 chains will reduce weight and chain drag, in turn, it would give you more speed!
NOTE: PHOTOS ARE FOR REFERENCE ONLY. ACTUAL ITEM WILL BE APPLICATION SPECIFIC, THEREFORE IT MAY LOOK DIFFERENT.
Easy to install and highly effective, these front sprocket for Honda CBR 250/300 engine will allow you to accelerate quickly or to achieve higher top speed! OEM sprocket size is 520 x 14 teeth, going down will give you more torque and acceleration on the low end, however, adding another tooth will slow down your acceleration in return for higher top speed (usually recommended for larger displacement engines).
This is a 420 pitch size conversion sprocket, which means you would need to run 420 pitch rear sprockets and 420 chain for the full 420 chain size conversion.
ENGINE FITMENT:
