Not only gives you a solid central mounting point for your high powered rechargeable light but a place to put the battery no more wrapping a long cable ten times round your stem cable is held in place by a strong rubberised strap no more flapping noisy cables mounts using thule39s multi mount handlebar bracket and can be mounted either way up allowing it to be used simultaneously with any other thule handlebar accessory covered by thule39s usual 5 year warranty