Topeak joe blow max ii track pumptopeaks joe blow max ii track pump is an entry level leader coming equipped with features that are ordinarily found on higher end track pumps with topeak quality coming as standard this durable and transportable track is easy to use with your presta and schrader valves featuresmaterial composite base painted steel barrelballbladder headshose x longhead twinheadhandle oversize paddedgauge base mount analoguecapacity 120 psi8 bardimensions lxwxh