The perfect roadside option when a mini-pump just takes too long. The classic option for mobile inflation has been updated to use a two stage gasket, leather piston, and has a snug fit on the frame 2-stage head gasket provides ultimate sealing and holding compared to lever chuck designs Machined aluminum head with brass check valve ensures a lifetime of flawless use Full aluminum barrel, handle and piston rod Competitive in weight with plastic designs while being significantly stronger, smoother and more durable Unique FlexWing Silicone bumpers on head and handle tip designed to accommodate tubing diameters from 1" (25mm) to 2.5" (64mm) Additional Silicone bumper on the main barrel protects paint, eliminates vibrations and noise, and acts as a compression lock against the handle to keep it from moving until use Leather piston gasket Version two has an adjustable fit to fine tune the length for additional security for all top tube lengths 256g-289g depending on size Color: Black