Frame Mounted crash bobbin to fit the Yamaha R1 2000-2003. Made in two parts, these crash bobbins have a 6082 aluminium housing that attaches the unit to the bike frame, replacing the engine mount bolt with a high tensile cap head bolt for a secure fitment. Once attached the high impact polyethylene insert screws into place with a coarse thread for added strength and an M6 locking screw for added security. Product Code: SESCBY005-X