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Valve Stem Extenders
- Thread starter jschara
- Start date
PGlaves
#13338
I am not sure what you mean by extenders. I always want the shortest stem I can find because that provides the most room between the stem and the hub or brake disk.
There has been some discussion about 90 degree stems or thread-on 90 degree adaptors, with mixed results.
What are you looking for and trying to accomplish?
There has been some discussion about 90 degree stems or thread-on 90 degree adaptors, with mixed results.
What are you looking for and trying to accomplish?
PGlaves
#13338
I think this is what you are looking for:
https://www.alltiresupply.com/produ...MItviPtrL65wIVDdNkCh3xygwnEAQYAiABEgLEWPD_BwE
pauls1150
MOA #24991, south of Los Angeles
That's one version; they're also available in plastic.
I see them as another place to lose air and have successfully discouraged a few neighbors from using them - I have a compressor in the garage and would sometimes "top them off" ... a whole lot less after deleting the junk.
Of course it affects balance - it's not just the fixed/absolute weight, it's also the increased effect that mass has at rotational speed. It will also depend on how picky you are about balancing, and the skill of the person doing the balancing and what method he uses, and if it's spin-balanced (dynamically), the calibration of the balancing machine.
I see them as another place to lose air and have successfully discouraged a few neighbors from using them - I have a compressor in the garage and would sometimes "top them off" ... a whole lot less after deleting the junk.
Of course it affects balance - it's not just the fixed/absolute weight, it's also the increased effect that mass has at rotational speed. It will also depend on how picky you are about balancing, and the skill of the person doing the balancing and what method he uses, and if it's spin-balanced (dynamically), the calibration of the balancing machine.
I've found that ball-chuck hose-ends with a bit of gentle prying on the stem, can be used to get compressed air into the standard valve stems. Other commercial/gas station air hose end types are hit-and-miss, and mostly miss.
For the last several years, I've done nearly all of my occasional tire pressure top-offs using a Zefal bicycle tire pump that has their proprietary "Z-Switch" chuck. This chuck's switch lets you use the pump for both Schrader and Presta-type valves (great for bikes, but not of much utility for filling airhead tires/tubes), but the chuck has a flat side that fits neatly against/between a snowflakes' "spoke" and your valve stem. This lets you easily get the chuck attached to your valve stem without any drama. A half-dozen strokes of the pump will bring a tire that has sat for several weeks back up to preferred pressures without waiting for my pancake compressor to fill, or dinking around for change to feed the convenience store's profit-center air station. I have not pumped up a motorcycle tire from flat this way---that could take a bit of time.
For the last several years, I've done nearly all of my occasional tire pressure top-offs using a Zefal bicycle tire pump that has their proprietary "Z-Switch" chuck. This chuck's switch lets you use the pump for both Schrader and Presta-type valves (great for bikes, but not of much utility for filling airhead tires/tubes), but the chuck has a flat side that fits neatly against/between a snowflakes' "spoke" and your valve stem. This lets you easily get the chuck attached to your valve stem without any drama. A half-dozen strokes of the pump will bring a tire that has sat for several weeks back up to preferred pressures without waiting for my pancake compressor to fill, or dinking around for change to feed the convenience store's profit-center air station. I have not pumped up a motorcycle tire from flat this way---that could take a bit of time.
Wow. That is tight. Is that rubber collar an indicator that you’re running the tires tubeless? I’d replace either the entire valve stem, or the inner tube, with something that gives you a somewhat longer stem. Another 1/2” or so would make things easier. My Zefal bike pump recommendation would still help.
jad01
New member
angled stem inner tube?
Maybe you can find something like this? This one is at JP Cycles, but Googling "motorcycle inner tubes angled stem" produced quite a few results/options. You could probably find them in the size(s) you need.
Maybe you can find something like this? This one is at JP Cycles, but Googling "motorcycle inner tubes angled stem" produced quite a few results/options. You could probably find them in the size(s) you need.
Attachments
brownie0486
Well-known member
Can't remember where I found it, but I have a 6" flexible valve stem extension I used on the rear rim of the 07 K1200GT. I still use it regularly on the 2012 GS with angled valve stems to prevent undue force being applied to the stem when airing up. The rear stem on that GT was nearly impossible to get to without that flexible extension.
1074
Active member
Not wishing to start another "tube/tubeless on a snowflake wheel" thread, but If it were my bike I would remove the tire and see what is inside. I've never seen a stem that short before! Unless it is an improperly installed tube then I'd want to look into a standard tube with a longer stem.
