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Post by barffy on Mar 23, 2015 11:30:44 GMT
I set up the wheels on my Commencal Meta V4 (own brand Alpha rims that weren't tubeless ready) using Joe's valves (Schrader) and Stan's tape and sealant. They have been fine for about 5 rides but yesterday I did an urban ride and noticed some Stan's on the outside tyre wall when I was down the metro underpass in Wolvo. Fast forward a few miles and showing off in front of the kids on the pump track I took a very fast left hander and I felt the tyre squirm underneath me and again there was evidence of Stan's on the outside of the tyre. I nursed it home and had obviously lost a lot of pressure (reading around 10PSI!). I hadn't used the bike for 2 weeks and didn't bother (stupidly) to check pressures before leaving. The front tyre is a tubeless Maxxis High Roller 2.
Should I be worried or is it more likely down to losing pressure whilst it's been sat around and there just isn't enough air in it to hold it on the rim when under high load?
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Deleted
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Post by Deleted on Mar 23, 2015 11:36:12 GMT
Always worth checking as they will drop a tad of pressure ..
I was lazy yesterday and my rear was very low oops didn't leak any stans ...
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Post by barffy on Mar 23, 2015 11:42:22 GMT
It's a bit un-nerving as I was going like a bat out of hell banked right over as I hit the tarmac start 'hump' and I felt it squirm then grip again. You've gotta show these kiddie-winks how it's done though haha.
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Post by Deleted on Mar 23, 2015 11:47:29 GMT
Never had the problem of it burping don't think I ride as fast as you  been running tubeless for the last 12 months only time it's failed on me was when I for got to top it up  seen a few failures  |
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Post by barffy on Mar 23, 2015 11:54:31 GMT
I never had the slightest bit of bother with my Stans/Schwalbe setup, but those rims were obviously designed to be tubeless from the start, wheras these aint!!
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Post by timbo on Mar 23, 2015 12:18:58 GMT
Superstar ds25's look like great rims for £30, id say for the sake of 60 quid you do tubeless properly and run whatever pressures you want with confidence? Stans flows arent outrageously expensive any more either.
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Post by andyr on Mar 23, 2015 13:10:46 GMT
Get the stupidly expensive Stans rim strip (the rubber ones, not the tape) or use the cheaper ghetto version (24" inner tube cut down) to line the rim. Sounds like you're not getting a tight enough seal on the bead.
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Post by hodgy on Mar 23, 2015 13:42:19 GMT
Get the stupidly expensive Stans rim strip (the rubber ones, not the tape) or use the cheaper ghetto version (24" inner tube cut down) to line the rim. Sounds like you're not getting a tight enough seal on the bead. ...says the man who I was once following uphill on the way to Chopwell woods from Prudhoe and he had a rear tyre explosion ( there was a flash !) covering me with white gunk ..but looked like something which rhymes with gunk.. Try explaining that to the missus when you get home from a night ride ! |
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Post by wolfenstein on Mar 23, 2015 17:21:22 GMT
use the cheaper ghetto version (24" inner tube cut down) to line the rim. Sounds like you're not getting a tight enough seal on the bead. This^ ... Even jared graves uses this in his enduro bike. i saw some guy burp the front tyre going down upper cliff moons ago, was a nasty sight. |
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Post by getonyourbike on Mar 23, 2015 19:06:59 GMT
More pressure and another wrap of rim tape will sort it out.
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Post by andyr on Mar 24, 2015 8:40:49 GMT
Get the stupidly expensive Stans rim strip (the rubber ones, not the tape) or use the cheaper ghetto version (24" inner tube cut down) to line the rim. Sounds like you're not getting a tight enough seal on the bead. ...says the man who I was once following uphill on the way to Chopwell woods from Prudhoe and he had a rear tyre explosion ( there was a flash !) covering me with white gunk ..but looked like something which rhymes with gunk.. Try explaining that to the missus when you get home from a night ride ! That was my experimental Manpaste (Tm) sealant with active ingredients... still not sure how that happened. |
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seen a few failures 
