Graves Motorsports Yamaha R1 Slotted Cam Sprockets for the all new 2015-2017 models. Graves Motorsports Slotted Cam Sprockets allow for precise cam timing to achieve maximum performance. A must-have if you plan to improve motor performance. Works with stock camshafts only (Note: you must press off the of stock cam shaft sprockets to remove them).
- The cam sprocket is a 8620 steel that is carburized to a 58-62 Rockwell (C scale)
- The adapter is a 17-4 heat treated steel that is treated to a H900 spec., which is a 58-62 Rockwell (C scale)
- The Bolts are made from a proprietary material that is similar to an 8140 chromoly with increased tensile strength from
- 190KSI to 220KSI, the threads are rolled after
- Heat treating to increase the fatigue strength by 10 times, it comes with a T30 torx head for maximum torque strength