XPi Cycle Light uses two CREE XM-L2 LEDs and produces a mind blowing 1250 Lumen for 2h on HIGH Mode.  Even the MID Mode is very bright at 750 Lumen for 3.5hs.  The Extreme XPi Cycle Light is especially suited for commuting or road cycling, as there are no wires and it is quick and easy to fit and remove the light.  It can be used for mountain biking as well.  The 200 Lumen LOW Mode gives you 15h of run time which is more than sufficient for a 24h single stage race on gravel road such as the Trans Baviaans or Desert dash.

The Quick Release Skewer Clamp Mount fits standard and oversized handlebars snugly, with no vibration.  The horizontal angle can also be set to offsett a riser bar.