CatEye CA5446510 RM 1 Rear Saddle Mount Bracket Cycling Lights and Reflectors, Black

Blacks

The spare Cateye RM-1 rear saddle mount bracket makes a great replacement. Compatible with the Cateye Rapid rear bike lights. If you're a multi-bike rider, a spare saddle bracket mounted on all your frames makes transferring lights super quick and easy.  Key Features Compatible with Cateye Rapid rear bike lights

Amazon

Banish the night From the morning coffee run to the 24 hour adventure race Cat Eye is the industry leader in light technology Seat rail mounted rear light bracket For use with all Flex Tight rear lights