Driven Racing 420 EVO TECH Rear Sprocket for Honda Grom & Monkey 125

🔍 Does this fit your bike?

• Honda Grom and Monkey 125.
• 34T is the stock rear sprocket for 2021 and earlier Groms.
• 38T is the stock rear sprocket for 2022 and newer Groms.

⚠️ Before you order

• The 2022+ and 2021-and-earlier sprockets are NOT interchangeable. Choose by model year.
• This is a #420 sprocket. A 428 chain setup needs the 428 version.
• Gearing: more rear teeth gives more acceleration; fewer rear teeth gives more top speed at lower RPM. One tooth down on the front is roughly equal to adding three on the rear.
• No returns on performance parts — please double-check your model year and fitment before ordering.

✓ What's in the box

• One rear sprocket in the tooth count you choose