RIDEAIR - SKS RIDEAIR Refillable Air Cartridge Pump - Emergency roadside assistance! - Fills your tires in seconds without effort - Simply refill the canister at home using your floor pump - Simple and environmentally friendly solution - Can be safely transported in the bottle cage, making it ideal for all E-bikers and comfort fans - Also a must have for tubeless bikers: it saves space and sets up almost all tubeless tires - Valve: Compatible with Presta/Schrader/Dunlop valves - Output Max: 230psi - Length: 262mm - Weight: 450g.