Fit For CRF250 450XR 125 150 230 Motorcycle Variable Speed Gear Chain Rear Sprocket 41T 45T 47T 50T 52T. Crafted from durable materials, this sprocket ensures long-lasting performance and reliability for your motorcycle. Easy to install and remove,the sprocket gear design kit is simple, light and small, easy to carry and use, convenient and practical. Easy to install and replace the broken one, no special tools needed. Made of good material, durable, not easy to rust and not easily deformed,for long time to use.