Lightning Bolt Front Thru Axle Available front and rear Lightning Bolt-On axles offer a stronger, more durable, lower profile and lighter weight option to replace your stock thru-axles No more bulky handles to strike trail obstacles. Aerodynamic design Internally bored to remove unnecessary material without compromising strength Requires a standard 6 mm hex wrench for easy installation and removal Compatible with Fox 15x110 Boost axles Robert Axle Project 15mm Lightning Bolt Thru Axle - Front - Length: 155mm Thread: M14 x 1.5mm (15x110 Fox - Boost) Color: Black Thread Pitch: 1.5 Overall Length (mm): 155 Axle Diameter (mm): 15 Thread Length (mm): 15 Weight: 55 Over Locknut (mm): 110 Robert Axle Project 12mm Lightning Bolt Thru Axle - Rear - Length: 163mm Thread: 1.5mm Thread Pitch: 1.5 Color: Black Overall Length (mm): 163 Axle Diameter (mm): 12 Thread Length (mm): 20 Weight: 37 Over Locknut (mm): 142