5x Harley Davidson Iron 883 XL883N 2009-17Gold Titanium Rear Rotor Bolts 3/8-16 x 1". 5x Titanium Rear Disc Rotor Bolts with Pre-applied Threadlock for Harley Davidson Iron 883 XL883N 2009-17. Made from Aircraft Spec Grade 5 Titanium our bolts are 40% lighter than the standard OEM Parts.