Cateye rapid x3 front lightthe rapid x3 represents the pinnacle of safety light technology designed to ensure youre seen both day and night doubling the brightness of cateyes popular x2 the x3 front puts out 200 lumens featuring their most versatile system the rapid x3 easily mounts to almost any application including round and aero seatposts seatstays handlebars forks and headtubes with the optional spacer x accessory the x3 fits cateyes flextighttm rear rack saddle rail and fizi