Bicycle Mechanics - who sells 20" presta tubes with removable valve cores?

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i need to be able to use valve extenders because i'm using deep-v rims. i got the impression that schwalbe tubes may have removable valve cores from an old thread on here, but there's nothing on their site to corroborate. any other recommendations?
HillRider
05-27-07, 07:24 PM
Contact Bike Friday. They sell lots of bikes with 20" (both ISO 406 and 451) rims and they should have a line on every tire and tube made in those sizes.
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