How do I pump this up?

[Or888t]

Dad's just bought a second hand mtb.
With the alternative innertube valve, tyres need pumping up, as it's been sat in a garage for a while...
How do I go about doing it?

Edited by Or888t on Monday 16th July 13:32

Edited by Or888t on Monday 16th July 13:34

[mchammer89]

It's a presta valve, usually found on road bikes but many MTBs use them too. Any bike pump should have a fitting to pump them up. You'll need to unscrew the top bit before you put the pump on the screw in back in when you're finished pumping.

[Or888t]

Thanks for that.
Any links for where we can get hold of said 'fitting'?

[shouldbworking]

Or888t said:

Thanks for that.
Any links for where we can get hold of said 'fitting'?

As said, most pumps have two fittings, or alternatively you can undo the pump head and turn round the part that depresses the valve on a schraeder type valve.

For the full experience you need to pump it up in a hamfisted manner, resulting in the valve core being bent and not sealing.

[daz3210]

Just one question, can you get a converter at all to use a standard car tyre type compressor?

[FunkyNige]

daz3210 said:

Just one question, can you get a converter at all to use a standard car tyre type compressor?

Yes, it's a little brass thing you screw onto the valve first,or maybe screw into the pump, one or the other!

http://www.chainreactioncycles.com/Models.aspx?Mod...

[Gizmoish]

shouldbworking said:

For the full experience you need to pump it up in a hamfisted manner, resulting in the valve core being bent and not sealing.

Glad it's not just me.

[Potatoes]

Blow, really hard!

Presta Valves are quite handy but need a different pump nozzle, you can get pump nozzles with both Presta and ...whatever the other, mainstram valve is called.

Kieran

[Or888t]

FunkyNige said:

daz3210 said:

Just one question, can you get a converter at all to use a standard car tyre type compressor?

Yes, it's a little brass thing you screw onto the valve first,or maybe screw into the pump, one or the other!

http://www.chainreactioncycles.com/Models.aspx?Mod...

So as a safe, easy option, I just need to buy this, and attach it to my standard bike pump?

[mchammer89]

Or888t said:

FunkyNige said:

daz3210 said:

Just one question, can you get a converter at all to use a standard car tyre type compressor?

Yes, it's a little brass thing you screw onto the valve first,or maybe screw into the pump, one or the other!

http://www.chainreactioncycles.com/Models.aspx?Mod...

So as a safe, easy option, I just need to buy this, and attach it to my standard bike pump?

Yep, though most pumps can pump presta valves without the need for an attachment.

[daz3210]

mchammer89 said:

Or888t said:

FunkyNige said:

daz3210 said:

Just one question, can you get a converter at all to use a standard car tyre type compressor?

Yes, it's a little brass thing you screw onto the valve first,or maybe screw into the pump, one or the other!

http://www.chainreactioncycles.com/Models.aspx?Mod...

So as a safe, easy option, I just need to buy this, and attach it to my standard bike pump?

Yep, though most pumps can pump presta valves without the need for an attachment.

I'm thinking of using a car tyre type electric compressor

[mchammer89]

Generally not a great idea as they pump so vigourously the air gets quite hot which can lead to the tube exploding or the actual pressure being a lot lower than the intended pressure after the temps get back down to normal.

[daz3210]

mchammer89 said:

Generally not a great idea as they pump so vigourously the air gets quite hot which can lead to the tube exploding or the actual pressure being a lot lower than the intended pressure after the temps get back down to normal.

Is that the same for those compressor things at garages that generally use an air reservoir?

[mchammer89]

Yep, though the bursting tubes is more likely with the high pressures on a road bike, i've done it a few times on the MTB after i'd punctured so as long as the pressure isn't too high it shouldn't be a problem. If it's a powerful compressor it may still lead to pressures much lower than those specified.

[Gizmoish]

Potatoes said:

Blow, really hard!

Presta Valves are quite handy but need a different pump nozzle, you can get pump nozzles with both Presta and ...whatever the other, mainstram valve is called.

Kieran

Schraeder.

[Potatoes]

Thanks!