After years of mountain biking with thru-axles with bulky handles that seemed to strike every trailside obstacle we needed a better option. Our Lightning Bolt-On thru axles offer the highest quality, simple, lightweight alternative to that bulky handle. Available in a range of sizes that fit both front and rear wheels on all types of thru-axle equipped bikes. Compatible with Hexlox security systems. This FRONT thru axle is compatible with bikes that have the 12mm FOCUS R.A.T. thru axle system.