MINI VELOCE ROAD is an accessory with lots of components: 1. CNC aluminum mini pump, 2. “Thumb-Lock Clever-Twin-Valve”, 3. fit for Schrader, Presta, Dunlop, 4. Presta is secure-sealed and won’t pop out till 120 psi, 5. easy engaged, 6. after operating, Presta valve won’t be separated when the pump head leaves the bike, 7. max. pressure 120 psi (8 bar), 8. for road bikes.