Valve stem cap indicators - do you use/trust them ?

[ohgood]

I was being dragged through wally world the other day, noticed some valve caps. They supposedly come in different flavors. Supposedly they also signal 36 or 32 PSI, provided the pressure doesn't drop below 32 or 29 PSI respectfully.

Don't know if I'd trust them for a long trip, but for an 'at a glance' thing, seemed like a neat idea.

Anyone use them on the bike ?

[waiho]

I had them on, they where neat and good to have on for the indication.

but after about 2 month of usage..... 

oneday I came out to by bike with a front flat tire  , noticed the cap was pierced right where they sealled it.

It might just been a faulty one, but thx god I was about a half mile away from the gas staion!!!

I never driven that slow in my life just to get there.

[dgyver]

Not something I would use or trust, especially on a motorcycle. To easy to just use a real gauge. Just another product for the lazy.

[GeeP]

I wouldn't use them.  They add another failure mode.  But, in principle, I like the idea.