Had an issue yesterday with a presta core coming lose after using a Lezyne pump (flex hose model).
A friendly passer by lent me his handy 'tool' to nip up the offending core.
It looked like this, just wanted to check this will do the job (no mention of presta core tightening in the description)?
http://www.ison-distribution.com/english/product.php?part=TUWTSVCT
I can't help but I'm running Presta and one of the inner bit's is slightly bent.. Still works fine but interested in any replies!
Is that the screw-on chuck? There were a lot of negative comments on Sannys recent pump test, suggesting it's not that clever.
http://singletrackworld.com/reviews/grouptest-mini-pumps/
those prongs on the cap are to tighten schraeder valves - didn't know you could use them for presta too !? (is it luck or genius that they both need the same distance between prongs, despite totally different fittings ?)
That's not a presta tool. You need something with a square aperture
Had the same problem. Got one of these:
http://www.lezyne.com/product-fpumps-acc-absfliphp.php#.VvBWXhjfWrU
The black button releases the pressure & stops the valve screwing out.
I've got 3 Lezyne pumps that don't do that. They all have the ABS thing.
Yep, screw on chuck. Tried spitting on it etc to reduce the friction, didn't work (fnar).
Just read the Lezyne instructions, and now realise what ABS stands for (air bleed system). You use this with the presta to release any build up of pressure, which will presumably make it easier to unscrew?
Regarding the tool, I slipped it onto the valve (ie wide opening first).
The 'faces' (correct word?) of the tool were inside if that helps. Can't help thinking it's a niche tool. Want one more than ever!
Think I've found it. £4.50. Maybe not such a must have item, I'd lose it on the first ride 🙂
This is what you want. Does Presta and Schrader
Cheers BoardinBob, looks good.