Trek Ion 100 R/Flare R City Bike Light Set One size Black electronic groupset this cassette provides the versatility

this cassette provides the versatility needed for diverse riding conditions

Perfect for leisurely outings

Designed as a bicycle tool for bottom bracket installation and removal

DUB bottom bracket design increases stiffness and simplifies compatibility

Trek Ion 100 R/Flare R City Bike Light Set One size Black electronic groupset this cassette provides the versatilityLight Trek Ion 100 R Flare R City Set Be seen safety for the city Everything you need to be see and be seen on city streets, paths and beyond. One light set for a complete Daytime Running Lights solution. The Ion 100 R and Flare R City feature focused optics and an interruptive flash pattern to help ensure visibility from up to 900m during the day. Integrated side lights help add visibility on this compact and powerful rear Daytime Running Light set.