Pro-Bolt M24 Titanium Flanged Axle Nut. Anodised Finishes Available – Blue, Gold, and Purple Haze options allow for bespoke design integration. Titanium Flanged Axle Nut M24x(1.50mm) Front Wheel. Titanium Flanged Axle Nut M25 Rear Wheel Suzuki GSX-R1000 2003-2004.