Just looking at the rim cross-section online, I probably would not have
attempted a straight tubeless conversion. There's no upper shelf for the
tire bead to snap into.
Here's where I found a view of the rim cross-section:
Chain Reaction Cycles LINK
<http://www.chainreactioncycles.com/us/en/sun-ringle-eq21-welded-rim-2013/rp-prod26280>
Here's the kind of feature I look for before even attempting tubeless:
<https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcSFNc9hMItxdZNIgTfrN_R4PCz7kzWtiw0be989Kx6XYjN4JBz-4g>
That shelf is what you need. If you want to go without tubes, keep them
pumped up, because air pressure is the only thing keeping the tire beads
from sliding down that hill inside your rim. Absolutely bring a tube for
roadside repairs.
That's my assessment.
On Saturday, November 7, 2015 at 7:46:45 AM UTC-8, Patrick Moore wrote:
>
> Posting this also to the iBob list.
>
> I recently had (folding) 559 X 32 mm Kojaks converted to the tubeless
> system on tubeless ready Sun/Ringle EQ 21 rims by an experienced mechanic.
> They ride wonderfully and I've experienced no problems except this one:
>
> When a tire fully deflates, as the front did recently, doubtless because
> of a slow leak, the beads pull away from the rim, making it impossible to
> reinflate them with a floor pump, let alone a frame pump.
>
> I think that the Kojaks are not "tubeless ready" though 2 experienced
> mechanics said that they are "tubeless compatible." In contrast, the
> Furious Freds, tubeless ready on rims designed for tubeless tires, often
> deflate fully from slow leaks or because I remove the valve cores to insert
> more sealant; yet the beads remain in place.
>
> Does my experience mean that I'd better give up on tubeless-i-fying the
> Kojaks? Or that I should build up the rim bed a bit higher?
>
> The Kojaks seemed to ride noticeably smoother, and perhaps faster, without
> tubes than they do with tubes.
>
> All help welcome. Thanks.
>
> --
> Resumes, LinkedIn profiles, bios, and letters that get interviews.
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> Patrick Moore
> Alburquerque, Nouvelle Mexique, Vereinigte Staaten
>
> *************************************
> *The point which is the pivot of the norm is the motionless center of a
> circumference on the rim of which all conditions, distinctions, and
> individualities revolve. *Chuang Tzu
>
> *Stat crux dum volvitur orbis.* Carthusian motto
>
>
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