Topeak TriBox Fastfuel Hardshell Shoes MTB TwinHead® w/ air release button

TwinHead® w/ air release button & x-long hose

Choose from four eye-popping

The micro chamois provides you plenty of comfort on the bike for short- to mid-length rides without being too bulky when running

Integrated dust cap keeps head clean and ready to use

your choice of frame

Topeak TriBox Fastfuel Hardshell Shoes MTB TwinHead® w/ air release buttonAn aerodynamic top tube fuel box design minimizes wind drag while eliminating interference with legs. Mounts by built in top tube integrated bosses or secure scratch free straps. The large opening provides quick and convenient access to energy bars, gels, or other energy items. Compatible with triathlon, time trial and road bikes. Mounts on triathlon frame top tube with built in mounting bosses Mounts on frame top tube (33 72 mm) with two secure