Engineered for the ultimate road cyclist, the Hotrod 90 unleashes a powerful 90 lumens of flashing output for unprecedented night and day cycling safety. Its cluster mounted array of LEDs work in unison for an extra wide and powerful output, maximizing your presence on the demanding roads. Be seen all the time with 24/7 Safety Technology, an exclusive set of solid and flashing modes to increase your safety when cycling, night and day. Every bit the road cyclist's tail light, the Hotrod 90 uses a Versatite flexible mount compatible with most seat posts including aero styles.