The BioLogic™ Zorin Post Pump is an ingenious combination of a seat post and powerful floor pump. The pump mechanism is hidden inside the seat post and uses the seat post as the outer wall of the pump. The pump is always at hand, hidden from the elements and thieves. Ergonomically, the PostPump is just like a floor pump: you stand while you pump and use the saddle as a handle. Max pressure is 110 psi with fewer than half the strokes of the best mini pumps. So say good-bye to kneeling in the dirt with a mini pump that will give you an arm cramp before your tire is filled and ready to ride. Dahon patented technology.

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