YZF-R1 TITANIUM front wheel spindle pinch bolt set. M8 x 40mm YZF-R6
Here is a set of 4 TITANIUM socket cap bolts.
Yamaha YZF R1 from 1998 to 2006
YZF R6 from 2003-2006
They are M8 x 40mm
Thread 1.25mm
Suzuki Part equivalent:51166-40H20
Yamaha part equivalent: 91314-08040-00