Joined: Jul 2006
Posts: 522
Likes: 95
From: TX
Bikes: Downtube IX NS&FS, Dahon Speed8Pro/Matrix/Curve, Brom S2L,Montague Para, ICE-XL w/Rollie/Schlumpf, Trident Spike, ebikes, BFSatRDay
Agree except where there is uneven rubber around the valve.
Failure at valve tire interface accounts for about 1in 15 of my tube failures, but that mat not be the mechanism
and s on older tubes as a rule