AS3 Performance Factory Series rear sprockets offer the best of both worlds - the strength of steel and the light - weight of aluminium. This makes them the ultimate durable rear sprockets for your bike. The outer ring, crafted from hardened steel with a nickel coating, lasts up to 3 times longer than an aluminium sprocket. Meanwhile, the inner ring made of aircraft - grade 7075 - T6 aluminium is up to 50% lighter than a standard steel sprocket.
**Teeth**: 52
**Compatibility**:
- Fits 2021 - 2023 Fantic XX 125, 2021 - 2023 Fantic XE 125, 2022 - 2023 Fantic XX 250, 2022 - 2023 Fantic XXF 250, 2021 - 2023 Fantic XEF 250, 2022 Fantic XXF 450, 2022 - 2023 Fantic XEF 450.
- Does not fit the XEF 250 Trail.
**Features**:
- The hardened steel outer ring outlasts aluminium sprockets by up to 3 times.
- The aircraft - grade 7075 - T6 aluminium inner ring is up to 50% lighter than steel sprockets.
- It won't bend or get damaged as easily as aluminium sprockets, perfect for enduro.
- It has an anodised finish with AS3 Performance branding.
- Manufactured by one of the world's leading sprocket manufacturers.
- Tested on some of the toughest sand tracks globally.
- A UK - based company offers a 12 - month warranty.
- The sprocket you receive will exactly match the one in the picture.



Using your AS3 Performance Factory Series rear sprocket is straightforward. Just replace your old sprocket with this new one, making sure it fits your specific Fantic model as listed. When riding, you'll notice the smoothness and durability right away.
Here are some things to keep in mind. Don't use this sprocket on the XEF 250 Trail as it won't fit. Also, although it's very tough, try to avoid hitting it against extremely hard objects during your rides.
For maintenance, after each ride, give it a quick clean with a soft brush and some mild soap and water. This will keep dirt and grime from building up. Every few months, check the teeth for any signs of wear. If you see any damage, reach out to the UK - based company that offers a 12 - month warranty for further advice. With proper use and care, this sprocket will serve you well for a long time.