Nt-kit lengthens. Valvu. Road 40mm. (2 units).

CHARACTERISTICS:. CNC machined aluminum valve extension, 2 grams each. Rubber O-ring seals inside the valve to eliminate leaks. Adds 40mm of length to any removable core Presta valve. Can be used with our road tubeless valve. Can be used with any removable core Presta tube. Sold by pair. Removable valve cores not includedDESCRIPTION:A pair of 40mm effective length threaded valve extensions for use with Presta valves with removable valve core. Allows deep section rims to be converted for tubeless use by using external threads to secure the pre-nut. The only valve extenders with external thread on the market.