I agree with Becky - I love my MiNewt, but I wouldn't use it for long/fast road rides as it's not bright enough. I have used it for 'cross practices and local small rides, but also wouldn't use it at all for any MTB riding.

Commuting may be ok too.

That said, it is definitely convenient! I love the small battery. Nite Rider also makes a TriNewt which is brighter - you may want to check that out (same small bettery).

SheFly