Topeak pressure rite shock adapter with releasepump up your forks and rear shocks with topeaks pressure rite shock adapter with release this schrader valve adapter works most efficiently when used in conjunction with topeaks joeblow enjoy the ability to fine tune your air pressure with a built in air release knob for optimal performance featuresmaterial body brasspressure tuning yescheck valve yesdimensions 39x23x11cm15x09x0 4weight 23gbuytopeak accessoriesfrom chain reacti