Convert Mavic R-SYS SLR to tubless

Discuss light weight issues concerning road bikes & parts.
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wymthg
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Location: Aberdeen, Scotland
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by wymthg

Has anybody converted a set of Mavic R-Sys SLR wheels to tubeless.

I see they sell UST Valves and tape, but is that for specific UST wheels from Mavic or can they be used on clincher wheel sets?

wingguy
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Joined: Thu Mar 08, 2012 11:43 pm

by wingguy

It wouldn't change that the hook isn't designed to seal a tubeless tyre bead.

With tubeless there's a lot of stuff that'll work, but whether it works all the time is a different story...

by Weenie


Ritxis
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by Ritxis


FIJIGabe
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by FIJIGabe

UST is a standard used by rim and tire manufacturers to guarantee a certain fit (the wheel will hold onto the tire - the beads are matched). UST allows you to establish a tubeless seal without the need for sealant (Shimano is the manufacturer that comes to mind, and they do not want riders using sealant in their rims). Most manufacturers who claim "tubeless" don't adhere to the UST standard (because they don't want to pay for the licensing), and that's why you need sealant to seal the tire to the rim - generally, there's nothing special about the tubeless bead on the rim - only that the rim has a center channel to let the tire sit in, making it easier to inflate and seat.

I've converted Reynolds, ZIPP's, Bontrager (pre-TLR models) and Mavic's over to tubeless, and I've never encountered a problem with the tires sealing onto the rim, or the seal failing down the road. Any clincher rim can be converted to tubeless, and will hold the tire in place.
Madone 9 https://goo.gl/7UwZpV
Crockett https://goo.gl/f5PdCN
Madone 5 https://goo.gl/cMdyFo

Madone 4, Cobia. I own a lot of Treks.

wymthg
Posts: 89
Joined: Wed Sep 03, 2008 2:42 pm
Location: Aberdeen, Scotland
Contact:

by wymthg

FIJIGabe wrote:UST is a standard used by rim and tire manufacturers to guarantee a certain fit (the wheel will hold onto the tire - the beads are matched). UST allows you to establish a tubeless seal without the need for sealant (Shimano is the manufacturer that comes to mind, and they do not want riders using sealant in their rims). Most manufacturers who claim "tubeless" don't adhere to the UST standard (because they don't want to pay for the licensing), and that's why you need sealant to seal the tire to the rim - generally, there's nothing special about the tubeless bead on the rim - only that the rim has a center channel to let the tire sit in, making it easier to inflate and seat.

I've converted Reynolds, ZIPP's, Bontrager (pre-TLR models) and Mavic's over to tubeless, and I've never encountered a problem with the tires sealing onto the rim, or the seal failing down the road. Any clincher rim can be converted to tubeless, and will hold the tire in place.


Thanks for this, what valves and Tyres did you use when converting the Mavics?

FIJIGabe
Posts: 1384
Joined: Tue Sep 11, 2012 6:07 pm
Location: The Lone Star State

by FIJIGabe

Valves were Stan's and tires were Hutchinson Piranha's (it's a CX bike).
Madone 9 https://goo.gl/7UwZpV
Crockett https://goo.gl/f5PdCN
Madone 5 https://goo.gl/cMdyFo

Madone 4, Cobia. I own a lot of Treks.

by Weenie


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