Garmin Varia Seat Rail Mount Kit Accessories_Transition Bags giving riders the option to

giving riders the option to build their ultimate ride without compromise

Number of Chainrings: Double

LabeledSize: 29 x 2

Equipped with two reinforced Travel Sentry Approved (TSA) key lock

improving your competitive advantage

Garmin Varia Seat Rail Mount Kit Accessories_Transition Bags giving riders the option toStreamline 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).