TexasDualler 32 Posted August 12, 2017 3rd time in 4 rides. It's starting to get really annoying. Any suggestions on how to keep from ripping the valve stem out? 2 times it was a ultra heavy duty tube, the 3rd a regular. I powder them pretty good when installing and make sure the stem is perfectly straight in before setting the bead. Rim lock is plenty tight too. Tried going higher tire pressure last time but still ripped out. It's the rear tube by the way. Maybe I need to start using tube grease? Share this post Link to post Share on other sites
Bp619 104 Posted August 12, 2017 Wow weird never seen that more than once. Time for mousse or tubliss. My preference mousse front to smash into rocks no pinch flats and tubliss rear for traction Share this post Link to post Share on other sites
Bp619 104 Posted August 12, 2017 Mark tire and wheel with a grease pen see if its slipping. I remember reading about alot of people having issue with trials and especially mitoz mountain hybrid still slipping and ripping stems with rim locks Share this post Link to post Share on other sites
TexasDualler 32 Posted August 12, 2017 I was thinking about going to mousse actually. I was also thinking it might be the tire. It didn't start doing this until I installed the new desert version AT81. Maybe I'm getting too much traction? Or maybe my rim lock is worn out and not gripping as well as it used to. Share this post Link to post Share on other sites
Oracle 195 Posted August 12, 2017 Well, as you have already deduced, the tire is slipping. What tire pressure are you running. Maybe try a new rim lock? If 14 PSI and a good rim lock doesn't work, I'd say there is something wrong with the tire. Share this post Link to post Share on other sites
Bagstr 288 Posted August 13, 2017 Would suggest Rim Lock is wrong size. Even tho tight, no pressure on bead. Share this post Link to post Share on other sites
PastaPilot 17 Posted August 13, 2017 It hasn't been mentioned but be sure to be using the same size tube for your size tire. I had a 90/100 front tire that I couldn't find a proper tube for and after 3 torn valve stems I put it on the shelf. Share this post Link to post Share on other sites