Yamaha R1 2004-ONWARDS. 40% LIGHTER THAN STANDARD STEEL BOLTS, 50% MORE STRENGTH, CAN ALSO BE TORQUED TO OEM BOLT SPEC. Titanium GR5 grade. FRONT AND REAR SET OF BRAKE DISC MOUNTING BOLTS. APPLY STUD LOCK TO NEW BOLTS TIGHTEN TO ORIGINAL TORQUE SETTING.