Garmin Varia Seat Rail Mount Kit Tooth Count-54/41 The Redline Classic K1 is

The Redline Classic K1 is built with one goal in mind: to get you to the finish line first

Hard metal tip for better durability

Number of Chainrings No Rings No Spider IncludedDrivetrain Speeds 12Drivetrain Speeds 13Chainring BCD Direct Mount SRAM 8-BoltChainline/Hub Compatibility 135/142 Road Disc Hubs < 415 mm ChainstayChainline/Hub Compatibility 135/142 Road Disc Hubs > 415 mm ChainstayColor CarbonCrank Length (mm) 165Crank Intended Use RoadBB Included NoPedal Spindle 9/16"Spindle Interface Type SRAM DUBDefined Color Carbon

It is important to use a compression plug – aka expander plug – in forks with a carbon steerer tube instead of a star nut

Proprietary water-based non-hazardous formula developed specifically for use with inner tubes

Garmin Varia Seat Rail Mount Kit Tooth Count-54/41 The Redline Classic K1 isStreamline your bike setup and optimize the height of your compatible Varia rearview radar to help make you more visible to approaching motorists This optional mount kit allows cyclists to mount and install their compatible Varia device beneath their bicycle saddle on standard alloy seat rails (7mm round) Installation is simple with a 4 mm hex wrench (not included) TECH SPECS