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OP
OP
Deleted member 26715
Guest
Just an FYI as it's my thread, the dust caps were originally a final seal to assist incase the main seal had a slight weep. They all used to be fitted with a rubber O ring, which due to I suspect manufacturing costs they now seem to not have
- Location
- London
"a bit of" I said.Who are you calling a big ponce, you little ponce?
tho'
If you also leave water at home, or only take one bottle on a longish ride, another bit of.
and then beg water from me, another bit of
or carry a tiddly tiddly pump that looks great but won't actually work so borrow mine and then bust it, not recognising a real pump, a bit more
(above three all happened to me - twas a slippery slope when they started leaving the lock-nut off)
- Location
- London
exactly - surely this happens to folk who leave them off? Or are they blessed in some special way?
To my horror I realised a while ago that I had bought two presta valve tubes that don't even have threads on the valve stem so I can't even add one of my spares - a right old pain they are.
Smokin Joe
Squire
- Location
- Bare headed cyclist, Smoker
To stop the valve sinking into the rim when you connect the pump either press the tyre down with your thumb or push it onto the ground.
- Location
- London
I take it you don't use Marathons?
Dec66
A gentlemanly pootler, these days
- Location
- West Wickham
With a track pump?
I'm not a gibbon?
And why do that when there's a perfectly good lock nut on the valve stem?
HLaB
Marie Attoinette Fan
I use valve caps just now on my to prolong the life of my more permanent tubeless valves. It's not really an issue with the tubes I previously used on the best bike. Although I use caps on the commuter which has tubes as the generally transition s between being in the car or the bus way, which can get gritty. As a result is cleaned less
youngoldbloke
The older I get, the faster I used to be ...
I actively seek out inner tubes with unthreaded Presta valve stems - they are much kinder to push on chucks. You push down on the tyre with one hand and push the track-pump chuck on with the other. Once the chuck is attached you just inflate as usual. No hassle. And I throw the caps away. They protect the tube when folded, but unnecessary otherwise - and there is the weight penalty of course.
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- Location
- London
Recommend, that if not, you get yourself circumcised.
Then your track/road opponents will spot your dust caps, think they have got you beat, but little do they know ...;.
derrick
The Glue that binds us together.
- Location
- On the edge of London
Dec66
A gentlemanly pootler, these days
- Location
- West Wickham
"Weight penalty"
Pick your nose before a ride, it'll probably have much the same effect in terms of weight reduction
PaulSB
Squire
- Location
- Chorley, Lancashire
I like to have my valves at the base of the wheel. As I attach the chuck this provides the necessary resistance without having to push the valve up from the opposite side.
I've always understood having the valve in this position, plus the nut, helps minimise the valve rocking during inflation.
PaulSB
Squire
- Location
- Chorley, Lancashire
Exactly my reasoning. I always use the dust caps as well as I think they look smarter than a naked valve.
Dust caps must have a purpose or else manufacturers would have dumped them long ago. I suspect the clue is in the name!!
youngoldbloke
The older I get, the faster I used to be ...
- they protect the tube when packed and folded before use. I always keep them on the spare tubes I carry for this reason. Dust caps on Schrader valves I understand, but not needed on Presta.
