Cygolite Seat Post Mount for Hotshot

This seat post mount is exactly what I needed for a new bike, so I can swap my tail light back and forth without buying an entire second unit. I had tried another source, which advertised this same mount, but it came with only the light receiver, and not the clamp ... deceptive advertising! Learned my lesson.

This taillight adapter is so narrow. Although I managed to tighten a little at the far end of the screw, seemed that it is very unstable and may drop off if cycling on uneven surfaces or gravel biking.

Works well

With the tendency of slopping top tubes, this is great for mounting a light on the seatpost instead of a carbon seat stay. It will clear most seat bags used for general day riding.

Great replacement for the original. I’ve had it on my bike for years and it’s still working fine.