Tenere shock failure My Tenere shock blew-out riding 2-up through Death Valley. No doubt the shock works harder riding 2-up. On-the-other-hand, we weren’t exactly “airing it out” in the national park either. The shock didn’t blow oil, it just quit working. The cause was a blown piston band and it blew on the rebound stroke. So it wasn’t a hard hit that caused the failure. The shock has some kind of molded on piston band deal. Replacements may not exist – at least I can’t find one.