Sell 2pcs 40mm MTB Road Bike Extender Valves Tubeless Presta Valve Core (Black) best price

2pcs 40/60mm MTB Road Bike Extender Valves Ultra-light Aluminum Tubeless Presta Valve Core for Bicycle Tubeless Tire Bike Parts Tool Specification: Material: aluminum alloy Color: Black Valve length: 40mm Weight: 40mm 5g/pc Compatible: for MTB/road bike Valve: 1. Check if the valve core is tightened. 2. Remove lock nut and O-ring. 3. Insert the stem into the valve hole on the rim. 4. Place the O-ring on the stem. 5. Screw the lock nut onto the stem. 6. Tighten the lock nut until the rubber end of the valve is tightly pulled into the rim orifice. Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3mm measuring deviation due to manual measurement.