Man of Honour
Probably the Ultrafire C8 would best suit that kind of use then, for biking the flood is really wide and impressive. The centre spot goes far and is quite strong for spotting things as well.
http://www.ebay.co.uk/itm/UltraFire...9909462?pt=US_Flashlights&hash=item2a2e916ed6
And this holder:
http://www.ebay.co.uk/itm/Universal...ing_LightsLanternsTorches&hash=item19dede12a6
http://www.ebay.co.uk/itm/UltraFire...9909462?pt=US_Flashlights&hash=item2a2e916ed6
And this holder:
http://www.ebay.co.uk/itm/Universal...ing_LightsLanternsTorches&hash=item19dede12a6