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Really?
These look like they would screw onto the little threaded nub. Left when the valve is removed. Then I can screw the vittoria vlave onto that.The vittoria ones are pricey and I need 2 different lengths (88mm, 60mm wheelset)
Smallfurry-
Really?
These look like they would screw onto the little threaded nub. Left when the valve is removed. Then I can screw the vittoria vlave onto that.I can't say with 100% confidence but i believe so, have you any extenders on other tyres you can try? A friend had a bit of a 'mare with punctures and short valved spare tubes in Mallorca this spring and he bought some of the red Vittoria extenders which wouldn't screw into his tubes so he had to go back and buy some black ones too.
See posts 4 & 5 here (it's the first thing I came across, didn't look very hard).
mustard
Pretty sure Vittoria started using a proprietary valve/extender system - are the valve stems red anodised? If so you'll need to get the matching extenders.