Also, of course, with a wider clincher rim, a wider surface of tire is actually touching the road. But this, I was told, also helps the tire to roll more efficiently AND improves stability/cornering, etc.
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Velocity A23/White Industries hubs -- on the Cervelo |
After getting the Jet 6 wheels, in summer of 2011 I ordered a pair of aluminum clincher wheels with Velocity A23 rims (23mm wide, White Industries' beautiful polished hubs, 36 spoke rear and 28 spoke front).
At 2011 PBP I had made the mistake of riding on a pair of standard Mavic Open Pro rims, with 700x23 tires at "normal" road bike pressure of around 100psi. The chip sealed portions of the road were punishing on my hands, feet and butt. I learned that many randonneurs, especially the Americans I met at PBP, scoffed at the idea of riding "normal" 700x23 road tires at 100psi. They were riding 700x25mm, or 700x28mm tires, or even 650B wheels with 30mm or fatter tires, at lower pressures. Somehow, they could zoom along at very high cruising speeds despite these fatter tires and lower air pressure, and without the punishment I had suffered.
I was hooked on the idea of at least a slightly wider rim and tire. Wide enough for improved aerodynamics with a 700x23 or 700x24 (Open Pave!) tire, or that would work well with a 700x25 or 700x27~28 tire. But not so wide that my bike would no longer look like a road bike, or slow noticeably.
The Velocity A23/White Industries wheels I got worked well. I built up a second pair of Velocity A23-based wheels with Chris King classic hubs (32/32 spokes) I got deeply discounted at the end of my framebuilding class at UBI. And I added 2 more A23-based front wheels with Shutter Precision SV-8/PV-8 dynamo hubs and CX-Ray spokes for randonneuring. These Velocity A-23 based wheels have served me very well over the past 2-plus years, including a host of 400, 600, 1200km and longer randonneuring events. They are comfortable, and with an adequate number of spokes they are sturdy, and when an occasional spoke does break, the wheel is still rideable. The front wheels have been essentially trouble-free. Especially the wheels with dynamo hubs and CX Ray spokes.
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36 spoke A23/White Industries rear -- rebuilt 4-cross pattern. Bombproof. |
As for the 2 rear wheels, after a few broken spokes in succession, earlier this year I rebuilt the 36 spoke White Industries hubbed wheel to switch from DT Revolution (2.0/1.5mm)/3-cross to a 4-cross/DT Competition (2.0/1.8mm) drive side/DT Revolution non-drive side.
The wheel with Chris King hub was already built with DT Competition drive side/DT Revolution non-drive side (32 spoke/3 cross) and worked great ... until the recent spoke pull through sent the rim to the garbage bin. So all of a sudden, I needed a new rear rim to rebuild around the Chris King hub.
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Oops. Spoke nipple pulls through my A23 rear rim, after 2+ years and 10,000+kms of service. |
The most likely candidates being the Velocity A23 and the HED Belgium C2 rims, I searched online. Neither was in stock and available from the likely candidates WITHIN Japan, nor from the sites I usually use in Europe (Wiggle, Bike 24, CRC, etc.). I could find them in the U.S., or on Ebay, but the HED rim is very expensive (well over $100, with another $50 or more for shipping). And the Velocity A23 also is quite expensive when you add international shipping charges from the U.S. Not practical for a single rim order, best to wait and order a set of wheelgoods and other items.
So I looked for wide-rim alternatives, and found a few.
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Mirror mirror on the wall ... |
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Very shiny |
An obvious choice is the H Plus Son Archetype. These came out a few years ago, from China, and have been well received. They look great. They are a slightly higher rim, at 25mm. 470g. MOB last year
built up a pair of the black Archetypes. I ordered a set of the high polish version. $75 each, plus $40 shipping for the pair. A bit expensive, but looking nice enough for a show bike. These I will set aside until I get the right hub/spoke combination.
Within Japan, I found 2 others that I could buy online at Worldcycle. First, a
Sun XCD (model SXR702) 32 hole rim targeted at the randonneur market. The rim is 22mm wide, and has eyelets -- no rim pull-through likely. The rim is a bit heavier than the Velocity A23, at 490g, but still well within the range of road (as opposed to "touring") rims.
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SunXCD -- with eyelets for a change |
I also ordered a TNI CX28 rim (32 holes). Hiroshi had recommended this rim to me a few months back. It is another 23mm wide rim, slightly deeper (28mm high), also 490g. And at 4000 yen (under $40) it is the least expensive of the bunch.
Comparison by ERD, outside width, height, weight:
Velocity A23 -- 601mm, 23mm, 19.5mm, 451g
HED Belgium C2 -- 594mm, 23mm, 24mm, 462g
H Plus Son Archetype -- 595mm, 23mm, 25mm, 470g
TNI CX28 -- 582.5mm, 23mm, 28mm, 490g
Sun XCD -- 599mm, 22mm, 19.5mm, 490g
With all the rims weighing between 450 and 500 grams, and 22-23mm wide, and 19.5-28mm high, I will be surprised if I notice any difference as I build and use them over coming months and years.