word of warning on preasure check valve caps

[ghostbiker]

Just thought i would post a word of warning to anyone useing the preasure valve caps that turn green /red if the psi drops
i have used the for a couple of years without an issue but i was on a track day this week and as i was going in to westfield bend at brands the valve stem on my tyre sheared off and dumped all my air.
affter a trip to the gravel trap ( scrubbed most of the speed off before i went in and stayed upright through luck not skill) and a new pair of pants it was clear the valve stem had cracked from the added weight of the valve cap.
I was lucky they had a tyre place in the pits who fitted a new stem and i was back out on track next session but he made it clear he also thought the cap was the cause.

as i say i have used them for a couple of years and not had a problem but i will not use them again thats for sure.

[markbubble]

thanks for the heads up on this and good to hear you didnt end up on your arse or worse,iv heard some of these caps actually loose tyre pressures!
 

[ReNcE]

I agree, its quite off putting to see yellow flags, and find your mate wading throug the kitty litter on the next bend lol

[smithfz]

Did your valve blow out? i thought those (green/ red pressure things where just caps) or is it a valve & cap product.  My valve came out on the work bench the other week it had corroded (obviously the valve didnt get changed when the tyre was done)

[ghostbiker]

its a normal valve stem, the cap itself is the problem as its extra weight. this caused stress on the valve stem and broke it about half way up.

[dazza]

This happened to me too, went for solid angled valves in the end and have now took them off all together. Another pointless gimmick from China I have but wont be using.