Brand New Race-Driven Riptide Brake Rotors and MudRat Brake Pads. You will receive 4 brake rotors and 4 sets of brake pads to replace the front and rear brakes on the following: 2021 2022 Yamaha Wolverine RMAX4 1000 YXF10. New Race-Driven Riptide Brake Rotors are made from tempered stainless steel for a great look and optimal performance. RipTide Rotors are designed with extra venting to cool your brakes in dry and heated riding conditions. Fresh out of Race-Drivens R&D Department are the new Race-Driven MudRat Brake Pads! We have listened and now are providing our customers with the highest brass content in a pad to this date without sacrificing braking ability! Race-Driven is committed to bringing the highest quality products to all riders at an affordable price. Customer Driven – Quality Driven – Race-Driven.