14-301Honda XR 250-650 XR 250 R 90-95 XR 600 R 91-00 XR 650 L 93- XR 650 R 00-07 Chain: 520 NOTE! Sprocket 301 has no countersunk for sprocket bolts, you must use the original sprocket bolt. Do you want to use normal countersunk sprocket bolts you can order sprocket number 14-210, the same as Honda motocross.