The GM-25D is an adaptable pump equipped with Giyo’s new CNC screw-in twin-valve pump head. This pivoting design has been created to help solve the traditional screw-in valve issue, whereby unscrewing the pump head can accidentally remove the valve stem, causing air to leak from the tyre. Works with both Presta and Schrader valves.
Eurobike Booth: Hall 9.1 / B29