Bontrager Air Support HV Pump Size:Black Reversible valve head fits both

Reversible valve head fits both Presta and Schrader valves

Wirelessly position all the information you need for commuting

Seatpost: M6 x 45 mm

while open rear hex pattern provides traction

700 x 42mm

Bontrager Air Support HV Pump Size:Black Reversible valve head fits bothMount an attack against flatsMinimize your time off the bike during trail side flat fixes with the high volume Air Support HV hand pump. A large chamber allows you to inflate tires up to 60 psi with ease, and a reversible valve head means you can quickly switch from Presta to Schrader without a hassle. This durable pump fits easily into your hydration pack, or use the included bracket to mount it under your bottle cage. Key features: Durable, high