recommend presta valve road tube 80mm stem WITHOUT removable core

[GrumpyGregry]

80mm* tube to suit 25 tyre, with a stretch to suit 28s, must not have removable valve/valve core**

*could use 60mm at a pinch.

**yes I've tried threadlock. No thank you.

 

[raleighnut]

80mm* tube to suit 25 tyre, with a stretch to suit 28s, must not have removable valve/valve core**

*could use 60mm at a pinch.

**yes I've tried threadlock. No thank you.

they always unscrew don't they.

 

[mjr]

Panasonic don't unscrew but the valves are carp anyway.

Impac and Halfords stay put for me to the point of me not knowing whether they're removable and I've not got them to hand right now for various reasons.

 

[GrumpyGregry]

they always unscrew don't they.

Yes, the little farkers do.

 

[screenman]

I feel left out, I have never had a core come undone unless I wanted it to.

 

[screenman]

I feel left out, I have never had a core come undone unless I wanted it to.

 

[GrumpyGregry]

I feel left out, I have never had a core come undone unless I wanted it to.

Then steer clear of CO2 wotsits and Lezyne screw on pumps with Conti removable core tubes. Toxic combination.

 

[vickster]

Schwalbe tubes are good and seem to have stable cores. Conti are the only ones I've used that seem to suffer this (Halfords don't but have other frailties)

 

[vickster]

Panasonic don't unscrew but the valves are carp anyway.

Impac and Halfords stay put for me to the point of me not knowing whether they're removable and I've not got them to hand right now for various reasons.

Or Panaracer maybe??

 

[jefmcg]

Halfords don't

Um, except the one you kindly lent me on the Wandle Trail. Can't tighten it enough to get rid of slow leak.

 

[raleighnut]

Um, except the one you kindly lent me on the Wandle Trail. Can't tighten it enough to get rid of slow leak.

Now you know why she gave it away.

 

[jefmcg]

Now you know why he gave it away.

???

 

[raleighnut]

???

Duly corrected now.

 

[screenman]

Then steer clear of CO2 wotsits and Lezyne screw on pumps with Conti removable core tubes. Toxic combination.

I use CO2 but never a Lezyne pump, how about a bit of lube as this may stop the problem.

 

[GrumpyGregry]

I use CO2 but never a Lezyne pump, how about a bit of lube as this may stop the problem.

tried Vaseline. The Lezyne tube just won't let go of the Conti core.