#1
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Very wide rims on a road bike wheelset -- wondering semi-idly
Per the discussion over at this thread, I'm looking at wider tires. My goal is to get to ~30mm of actual width.
I bought a CAAD10 (2011-2012 era) and it has great clearance in the fork, chainstays, and seatstays. However the brake bridge is just a tiny bit too low with the current rim/tire combination I'm using -- Neuvation wide rims and Conti GP4000s (nominally 700x28). I'd like to try an even wider rim with a nominally narrower tire, hoping to keep the same tire width but have the tire not quite as "tall". That should work, yeah? I'd love to try the HED Ardennes plus, but they're far out of my price range -- at least while I'm still in the proof-of-concept phase. I'm wondering about going with a set of mountain bike 29'er rims at 25mm width and lacing them up to an old set of 74xx hubs that I have lying around. Looks like I can order some WTB rims cheaply at 540g per rim, rather than the Ardennes Plus at 460g per rim. I'm not worried about the weight right now. As long as those rims handle rim brakes, should I run into any problems? Thanks for any input. |
#2
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I'd worry about whether your brake calipers can line the shoes up square with the rim. Even with orbital washers, I would think that most road brake calipers aren't designed for a wider 29'er rim. Then I'd also worry about the tire having enough width to sit square on the rim. Let us know how it goes.
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#3
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Velocity Dyad. Done. 24mm external, 18.5 internal width. 520 gr. with machined side walks for rim brakes. Cheap
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www.performancesci.com - Performance through science |
#4
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These work well, and are very strong! I've used them for many miles!
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#5
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internal rim width = wide rim
its the bead to bead distance, not the external width, that's responsible for the improved contact patch & ride quality of a 'wide' rim
a HED Ardennes+ rim is 20.7mm wide. The Ardennes is nearly 18mm wide as is the Pacenti SL23. A standard clincher rim is 13-14mm. How wide is wide enough? Not seen a side by side comparison as yet. |
#6
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Velocity A23 rim + Clement LLG 28c at 75 psi = 30mm measured width.
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#7
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I have wheels hand-built with Hed Belgium Plus rims on a bike with Chorus brakes without issues.
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#8
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Thanks for the input so far.
These are the rims I was looking at, since they're cheap enough to just try out: WTB Dual-Duty XC. I've never built a wheel before, but I've wanted to for a while, so maybe... On the other hand, the Dyad rims sound like an excellent option, too, and more viable in the long term. I'll try to keep my eyes out for some; if I could find a used wheelset, that would be a great option since I'm a die-hard cheapskate. |
#9
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Come to think of it, is there anyone in the Seattle area that would want to loan me some 29er wheels for an hour or so to check out the fit before I go farther on this project? I'd be looking for an external rim width of 24-25mm (even though one60 is correct that the internal width is a better measure; that figure isn't often published.)
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#10
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Very wide rims on a road bike wheelset -- wondering semi-idly
Just remember that most 29er rims are designed for disc brakes.
EDIT: nevermind, just saw those are dual use. Sent from my iPhone using Tapatalk |
#11
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XC & mountain rims are NOT designed for high psi
there is a thread on VSalon that suggests using an XC rim designed for a max PSI of 65 is not the best for a 80-90 psi road tire.
that was news to me but I thought I'd share...be safe out there! |
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