NiteRider

I bought this tail light for my wife's bike, but she said it was too bright. I said that was the point, so I put it on my bike instead. Scrolls thru multiple flashing patterns or solid if you choose. Make sure you hear the 'snap' when placing into the seat post holder otherwise you'll loose it. I learned the hard way. : /

I had a night rider light before and liked it. Unfortunatly I misplaced or lost it after I had it for 6-8 years.

So I love my new nightrider light even more because it is smaller, and more powerfull. The different brightness modes are awesome and easy to change.

Also I like the nightrider light because it is being manufactured in San Diego were I live and ride. I went to their shop once and had my older light rebuilt under warrenty.

It's a back flasher light. Not a high-tech thing (i.e. like Di2 or carbon wheels). But it works. Easy to mount on my bikes - I have multiple bikes (Cervelo S5 - aero seat post and a Caledonia (standard round 27.2 seat post). Battery lasts a long time. Sometimes I forget to charge it and I am amazed that it lasted for that entire ride. It's really bright. In the morning when it's dark, I turn on the NiteRider Sentry Aero 260 Rear Light, the light hurts my eyes because it's so bright.

I would like to give this light 5 stars like everyone else, but the mount strap is too short. I was able to stretch the strap and get it to hook into the first hole; but it is too tight and I expect it to break sooner rather than later.

Also, the the base of the strap which attaches the strap to the light is curved on the inside, and the back of Specialized seatpost is flat.

I cannot recommend this light for Specialized road bikes.