valve extender advice for 50mm profile

stabvest
stabvest Posts: 8
edited May 2011 in Road beginners
any advice on valve entention length for 50mm profile carbon rims, the tyres i run are a standard lvalve ength conti sprinter tub , is it a case of sticking to continental's own valve entenders and go longer to be safer or would a 30mm-40mm entender cover it do you reckon?? math was not one one my stonger subjects you must understand :cry: finding it quite hard to gauge if you lose any length when you attach them both together

cheers

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