Inner tube help required

[Furkz]

hi i bought some new tyres which at 700c x35mm used to rub 28mm and bought a new inner tube also 28-47 to match now the stem is too small in length for my wheels and i cant even get a pump on it. i had a nut as the bottom of the stem. shall i remove this for more clearance?

i have used a schrader adapter to get a pump on it to fill it with air, shall i keep doing this or will my existing tube with the longer valve fit? that is 28/32mm will that stretch ok to 35mm tyre?

please help an idiot

also quick release rear wheel, took me an hour to get it back on lining the chain up and fiddling it back it, is there a quick way or is it always like this the 1st time?

on a positive note i did replace the tyres and tubes without any tools!

 

[gaz]

Is the nut on the stem inside the rim?
It is meant to go on the outside.

 

[Furkz]

ahh that might be it, but will i doubt it will give enough clearance still

really thinking about running my old tube? will that work

 

[gaz]

You may be able to get away with it, but i wouldn't advise it.

Always make sure you by an inner tube with a valve length that suits your needs

 

[Furkz]

i thought i did, ill try removing the nut tomorrow. thanks

 

[HLaB]

The existing tube is ideally too small but it'll get you by in an emergency. I've not ever had a shrader valve too short perhaps you haven't seated it right I remove lockrings if they are there (as I prefer a speedier tube change), if removing it helps you I can't see any reason not to remove it.
On the QR front, I ensure I change the gear down to the smaller sprockets (it makes it easier) I then put the wheel in, pedal through (so that the gear is in the right sprocket), reopen the QR, pull the brake hold it and close the QR (it just lines up the wheel better). Doing this with the bike upside down or in a workstand helps.

 

[Furkz]

Presta valves - used a schrader adaper to get the pump on it

it was getting the wheel in which was the problem i used a youtube guide and lowered the chain to smallest cog etc like u said

thanks again guys

 

[Furkz]

Guys do I have to buy a new tube or can I change the stem. I feel mugged off

 

[on the road]

Did it mention the length of the valve on the package? You'll probaly want one with a 42mm valve, it's possible to get longer valves. I believe you can get valve extentions, I have never needed them so don't know what they're like.

 

[Furkz]

I think it's 34mm the website only listed this size. Never mentioned valve length only tube size. Guess I'm out of pocket

 

[Paulus]

also quick release rear wheel, took me an hour to get it back on lining the chain up and fiddling it back it, is there a quick way or is it always like this the 1st time?

[/quote]


When taking the back wheel off, change gears so that the chain is on the smallest cog at the back. Take the wheel off and when you come to put the wheel back on the chain will go over the smallest cog and will be easier to fit back on.

 

[PpPete]

Usually only get long valve option on tubes for skinny tyres.

 

[Furkz]

bloody thing finally got it to fit by removing the nut than got pumping to 60PSI and bang my Mrs thought i got shot. ended up running the old tube stretched from 32-35 and all is well

 

[on the road]

If it went bang then you must have got part of the tube stuck between the tyre and the rim, 60psi isn't much unless the tyre pressure gauge on the pump is faulty.

 

[Furkz]

i was trying to be quick, had an emergency i had to get to so its all possible, i had a feeling from day one that tube was wasted or would be