Anyone got any idea where to source presta valve cores for use with tubeless wheels at a reasonabe price? A quick look on eBay came up with schraeder cores for £3.95 for 50, or 8 pence each, presta ones about two quid each! I know, economies of scale and all that, but come on………..

Get a Schwalbe tube…. Removable cores and a spare tube…

Yep, check your old inner tube mountain to see if any have removable cores. Quite a few quality brands do, including Schwalbe and Specialized

Not just Schwabe. Go look in your big bag of inner tubes waiting to be repaired – quite a few have removable core IME

Chain Reaction for boxes of 10

http://www.chainreactioncycles.com/no-flats-presta-valve-core/rp-prod94758

Can’t renember where I got them, but I got a load of presta cores cheap, cheap off some site a few years ago.

They’re out there somewhere.

Will have a trawl through my emails to see if there are any clues…

Just fixed one of mine with a core pinched from an old tube.