Park Tool provides an easy solution for bringing inflation with you, should you need it, on a ride. The Mini Pump is small enough to securely mount on its supplied hardware on water bottle bosses or under a cage, yet big enough to pump efficiently so you can get back on the road quickly. The PMP-4. 2 is available in Blue and Black and its lightweight precision machined aluminum barrel construction ensures long life and smooth operation. The pump features a reversible head that quickly transforms from Presta to Schrader valves. This pump is 265mm long and can pump to a max pressure of 90 psi.