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safety issue with enve rims
 

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greglepore
Joined: 10 Jan 2004
Posts: 1693
Location: SE Pa, USA

9/3/20 6:47 AM

safety issue with enve rims

for those that don't read Paceline, an "interesting" recent thread-https://forums.thepaceline.net/showthread.php?t=257564

Executive summary-Enve tubeless compatible rims that aren't prepped with their tape and/or modified with a hole in the side can fill with air pressure from the tire chamber when set up tubeless, and freaking EXPLODE. They don't seem overly concerned because they tell you on the website to use their rimtape. Sheesh.

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Brian Nystrom
Joined: 26 Jan 2004
Posts: 4701
Location: Nashua, NH

9/3/20 7:55 AM

That's something I never considered. All of my tubeless wheels have low profile - and low air volume - aluminum rims, so I'm probably safe, but it does make me wonder...

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dan emery
Joined: 11 Jan 2004
Posts: 6445
Location: Maine

9/3/20 8:02 AM

Sprint wheels

When you need to augment your explosive power.

Makes roadside repairs a little tough though.

I donít Enve that!

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Sparky
Joined: 08 Dec 2003
Posts: 17909
Location: Portland, OR

9/3/20 9:50 AM

Even a better case for my recent tubular direction. I have settled into tubeless for lower pressures only anyway.

I have one tubeless 35mm carbon disc set I have 38s with latex tubes. But if tubeless with 38s probably run 50 PSI max. I am only running 65 in the 30mm tubulars.

When the road 7850 tubeless wheels got older I put kapton tape in, even though no spoke drilling. Orig owner appeared to have used a metal tire iron and took the finish to allot in a few spots. The sealant with ammonia happily started into the alloy over time. So having the tire to tape edge sealed seemed a good idea after I epoxied the spots.

I did get full life of rim brake track service outta them until over 10 years old too. Sold to a CXer who expected one season of low psi CX tubeless use before finishing off the brake surface, the wear dot was like 1mm left.

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Nick Payne
Joined: 10 Jan 2004
Posts: 2490
Location: Canberra, Australia

9/3/20 8:46 PM

There are also some tyre manufacturers (Challenge is one that I know of) who warn against using their tyres on Enve rims, as the hook on the rim is not properly radiused, but quite sharp, and can cut the tyre where it presses against it.

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Sparky
Joined: 08 Dec 2003
Posts: 17909
Location: Portland, OR

9/3/20 9:49 PM

https://bikerumor.com/2019/03/12/enve-pressure-relief-nut-keeps-carbon-tubeless-road-rims-from-popping/

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