R&G Racing's CP0523BL Aero Style Crash Protectors are made specifically for Yamaha MT-09 (SP) & Tracer 9 GT (2021-current). Prevent expensive frame and engine damage in the event of a slide with R&G Aero style frame sliders. Used by some of the world's best race teams, these crash protectors are purposely engineered to minimize damage to critical components during high speed mishaps. Replaceable, high density polyethylene bobbins designed to slide while wearing down, will scrub speed without digging in or grabbing, reducing the chances that your machine will flip once it lays down. The pucks are metal sleeved to provide added stability as well as ensure proper torque settings and include removable end caps to provide a clean look. Attached to the strongest parts of frame, de-embrittled mounting bolts reduce stress on impact by deforming without snapping.