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EQUIPMENT

Revolution Wheelworks Rev-20

Tue, 02/05/2013 - 3:11pm by Andy Shen

Over the last six years I’ve become a convert/proselytizer first for tubeless, and then tubeless on wide rims. The ride is smooth, cornering is excellent, and I haven’t flatted once in those six years. Every time I see someone changing a flat by the roadside it’s all I can do to hold my tongue. The only drawback was the lack of an affordable wheelset for this setup.

A-a-a-and this is where Revolution Wheelworks’ Rev-20s comes in. Built with Velocity’s A23 rim and Sapim CX-Rays, the Rev-20s come in at 1438g (1430 claimed) and $690, which makes it lighter and cheaper than most of the big name offerings. At 160 pounds I’m right at the recommended weight limit for the 20/24 spoke build. I chose them instead of the 24/28 to see if I could wreck them.

RWW make no secret of the fact that they source existing parts for their wheels. What they offer are well spec’d wheels, sane pricing, and most of all, excellent build quality. My test wheels were indeed perfectly true and evenly tensioned. I taped them up with Stan’s tape and brought them to Mark Purdy at iFixByx to mount the tires.

Mark and I have noticed that tubeless setups can really cause spoke tension to plummet, so we took measurements before and after airing up the tires. The rear non drive side went from 100Kgf down to 70, and the front went from 83 to 55. I brought the tension back up with the tires mounted and the wheels have stayed true since. If you’re planning on going tubeless RWW will build the wheel with extra tension to save you this step (but I’d still check them after inflating). They’ll also sell you a $15 tubeless kit which includes the rim strip and valves.

So...they’re reasonably priced and well built. Tires transition smoothly into the 23mm rims for a smooth ride that rails corners. They’ve proven durable even though I’m right at the edge of their weight limit – they’re good as new after 1,600 filthy winter miles but for a little roughness on the rear bearings. All I have to add is that these are the lowest profile rims I’ve ridden in a while, and I’d forgotten what it’s like to be invisible to crosswinds. It’s very nice to descend at speed and not be freaked out by a gust of wind or a passing semi.

 

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nice of you to support the
By: Taddeo Headset
Thu, 02/28/2013 - 4:11am

nice of you to support the crca junior program with your varied offspring.

Tubeless rubbers
By: Spandex Gangster
Thu, 02/28/2013 - 1:51am

I recently went tubeless with my rubbers and my frantic pumping has never felt smoother.

No shelf, they're not
By: Andy Shen
Wed, 02/27/2013 - 8:49pm

No shelf, they're not tubeless dedicated I just made them tubeless. You could always build it up with tape if you want that extra level of security.

Are these A23 rims *true" tubeless?
By: Guillaume Headset
Wed, 02/27/2013 - 8:17pm

Andy, do the new A23 rims that Revolution sources have the "shelf" for the tire beads that are usually associated with (what I would call) "true" tubeless rims (i.e., with the enhanced blow-out prevention that tubeless-specific bead+shelf rims provide)?

And the Ultremos!
By: Martin Tarmac
Thu, 02/07/2013 - 4:12pm

And the Ultremos!

I don't have the super racy
By: Andy Shen
Thu, 02/07/2013 - 3:41pm

I don't have the super racy IRC's. The ones I have don't feel terribly different than the Hutchinsons. Looking forward to trying the lighter IRC's later in the year.

According to Road Tubeless,
By: Martin Tarmac
Thu, 02/07/2013 - 3:28pm

According to Road Tubeless, the IRC tires are very nice. Light and supple. I am using Hutchinson Intense now, which is fine, but I am curious to try other tires.

How are the IRC tires
By: Mathias Rear Entry
Thu, 02/07/2013 - 4:52am

How are the IRC tires compared to Hutchinsons?

Can you pinch a loaf whilst
By: Armando Chainline
Thu, 02/07/2013 - 12:00am

Can you pinch a loaf whilst riding tubeless?

Do NOT try that. Tubeless
By: Andy Shen
Wed, 02/06/2013 - 8:13pm

Do NOT try that. Tubeless beads don't stretch so the tires won't blow off. The point isn't to save weight, it's to avoid pinch flats and punctures, run lower psi's ('cause you can't pinch flat), and to not lose energy in the friction between tire and tube.

Has anybody had success in
By: mikeweb
Wed, 02/06/2013 - 7:35pm

Has anybody had success in going tubeless with regular road (700x23) tires? I've noticed that dedicated tubeless tires seem to weigh about 50% more than the Conti GP 4000S's I use now - not sure why this is the case. So when factoring in tube vs. no tube, there doesn't seem to be any advantage at all in rotational weight.

No chance of burps at 90 psi.
By: Andy Shen
Wed, 02/06/2013 - 6:03pm

No chance of burps at 90 psi. CX'ers are going below 30 psi, which, for that tire volume, is super low, hence the burps. 30 psi at MTB tire volumes is a lot firmer.

Tubeless
By: Taddeo Axle
Wed, 02/06/2013 - 5:05pm

Talk to a MT Biker and there is no other way to go. It changed everything. Some CXers like tubeless as well with reservations about the dreaded burp at low pressure. Are burps nonexistent with higher road tire pressure?

I'm told that a little doobie
By: Cheech
Wed, 02/06/2013 - 3:49pm

I'm told that a little doobie in the morning reduces tension considerably throughout the day.

I have never gotten a
By: Andy Shen
Wed, 02/06/2013 - 2:51pm

I have never gotten a satisfactory explanation of that but it's definitely real. I've read that tension drops for tubed setups but not nearly as much. Maybe beads on tubeless tires are tighter? Sometimes it's enough to make NDS rear spokes to go slack.

spoke tension
By: Alexandre Torque
Wed, 02/06/2013 - 1:29pm

Why does running tubeless reduce spoke tension any more than the inner tube pressing against the rim?

If everyone in the peloton
By: Andy Shen
Wed, 02/06/2013 - 5:18am

If everyone in the peloton had a gun then no bikes would be shot.

You can probably convert any carbon clincher to tubeless. I did it with 808's, the only oddity is that the carbon weave of the rim bed didn't seal with the tape, so I had to use wider tape so that it went up the sides of the rim and made a direct seal with the tire bead.

http://velocitynation.com/content/equipment/2011/zipp-firecrest-carbon-c...

the right to bear arms
By: Monorchid Conconi
Wed, 02/06/2013 - 5:07am

the founding fathers fully envisioned bullet proof wheels when they wrote the second commandment, and thus provided for a well-regulated militia's right to bear arms in order to shoot your bike. true story.

Andy - are there any deep
By: Wylie Brazeon
Wed, 02/06/2013 - 5:03am

Andy - are there any deep section carbon rims out there that are tubeless compatible? also, are tubeless conversions on standard rims any less reliable than purpose-built tubeless rims?

Um, it's called hyperbole.
By: Donato Asshat
Wed, 02/06/2013 - 12:41am

Um, it's called hyperbole.

Bulletproof
By: Asshat Kornhole
Tue, 02/05/2013 - 9:17pm
How about Fat-Ass Proof?
By: Chunky Monkey
Tue, 02/05/2013 - 8:36pm

How about Fat-Ass Proof?

Big Bang
By: Notorius
Tue, 02/05/2013 - 7:40pm

bomb-proof?

"bullet-proof" has to be
By: Benjamin Ceramic
Tue, 02/05/2013 - 7:13pm

"bullet-proof" has to be among the dumbest marketing terms for cycling gear in recent memory.

go fire a 30-06 at the rim and get back to us on how it holds up. thanks.

Another Option
By: Stan's NoTubes
Tue, 02/05/2013 - 6:45pm

http://www.notubes.com/Alpha-400-Comp-Wheelset-P1059C58.aspx
These are slightly heavier and slightly cheaper from the guy that invented tubeless. Bullet-proof training wheels.

I recently re-built my main
By: mikeweb
Tue, 02/05/2013 - 6:26pm

I recently re-built my main wheelset using the .HED Belgium C2 clincher rims (28/32 setup).

Would these work for a tubeless conversion - they're 23mm wide. I'm a little hazy on the process but I think you guys had an article on it in the past(?) I'd be grateful if you could link to it.

Got the tires from Mark he
By: Andy Shen
Tue, 02/05/2013 - 6:05pm

Got the tires from Mark he has all four IRC's. I went to Mark's for the compressor. So much easier than frantic pumping. Wanted his advice on spoke tension too.

Next question - where do you
By: Martin Tarmac
Tue, 02/05/2013 - 5:21pm

Next question - where do you get the IRC tires?

Mounting
By: Victor Clearcoat
Tue, 02/05/2013 - 5:21pm

Why did you have to go to Mark Purdy to have the wheels mounted?

Couldn't you do that yourself?

The tape just shows rim and
By: Andy Shen
Tue, 02/05/2013 - 4:40pm

The tape just shows rim and tire profile.

If you have an A23 wheelset you should be able to tape it up and run tubeless.

i have an a23 wheelset, can i
By: Benjamin Ceramic
Tue, 02/05/2013 - 4:20pm

i have an a23 wheelset, can i run tubeless on it?

Is the tape to show the tire
By: Martin Tarmac
Tue, 02/05/2013 - 3:52pm

Is the tape to show the tire bulge? I recently went tubeless and have been liking it, even thought I thought I wouldn't. I am using the AC Tubeless wheels which are probably too light weight.

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