Spesh inner tube are fine, we rarely ever have problem with them (it is after all our most used tube).
Sound like you got bad batches.
@edscoble started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Spesh inner tube are fine, we rarely ever have problem with them (it is after all our most used tube).
Sound like you got bad batches.