Joined: Sep 2009
Posts: 4,697
Likes: 2,039
From: Up
Bikes: Masi, Giant TCR, Eisentraut (retired), Jamis Aurora Elite, Zullo, Cannondale, 84 & 93 Stumpjumpers, Waterford, Tern D8, Bianchi, Gunner Roadie, Serotta, Serotta Duette, was gifted a Diamond Back
I wouldn't have too low of pressure, it may be possible that the tire pressure is so low that the tire is slipping on the rim and it is pulling at the fixed stem and tearing the tire at a fixed point. is the valve stem perpendicular to the rim? or slightly cockeyed?