i got a deal with a mars 2.0 rear and a black burn quadrant for the front for 20$, i bought two sets. The mars lights are great, the quadrant, while nice and bright (to BE seen) are huge, use 4 AA batteries and the mounts suck, so dont buy these, I wish I had bought the blackburn flea for the front, it is super small and bright, plus it is rechargeable, buy 2!