inner tube valve

slow but steady

Hi

Quick problem, when I try to inflate my tyre the pointy thing in the middle of the valve is too long. It lets the air out quicker than it can go in :roll:

Also the pump connector keeps sliding up the valve and popping off

Can the centre pin bit be pushed down / replaced somehow or do I need a new innertube?

I'm sure someone will understand what I mean!!!

Thanks in advance

Dirtydog11

What type of valve is it Presta (non car type) or Schrader (car type).

sniper68

If its a presta(thin) your pump might be set up for Schrader(car type)and you'll need to turn the little rubber in the end of your pump around,assuming you have a dual valve pump.

slow but steady

Hi

It's a car type valve montain bike wheel and a car type pump.
It's just the pointy middle bit that's stick out too far!!

cooldad

Pic would probably help.
They normally stick out a tiny bit, and longer could be a faulty tube, but if your pump slips off all the time, I would replace it first as it shouldn't.

Should either screw on or have a clamping system.

Anonymous

Pumps usually have a lock system, so you push them on, and flip a lever (normally) to hold them in place.

slow but steady

Hi yes pump has a lock that you push down, works fine on my car tyre but just slides off bike one!!

The inner tube is what was supplied with my cube bike.

The prongy bit in the middle seems level with the outside bit that you attach the pump too.

Therefore when you attach the pump it is pressing the middle bit as you would to release the air :?

bails87

It sounds like the valve core could be unscrewing itself. You may need a schraeder valve tool to tighten it back up.

nikstar1

In order to fully explain you may need to post a picture as it is very difficult to diagnose a problem if we can't see it. Sounds like a simple pump and valve incompatibility issue though.

If you're still struggling then give us a shout.