23mm or 25mm internal rim

Especially for light weight issues concerning cyclocross / touring bikes & parts.

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JBC
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Joined: Sun Aug 17, 2014 9:01 pm

by JBC

Can anyone advise on the benefits/differences of 23 or 25mm carbon cyclocross rims?

Using 21cm now and buying a second set and have choice of new widths.

Weight wise I am assuming the 25's are a little heavier but does the extra internal width offer any advantages.

Many thanks

by Weenie


11.4
Posts: 1097
Joined: Tue May 23, 2006 4:33 am

by 11.4

At 25 mm, some brakes start having problems accommodating the width. It's also a relatively rare width so far, so if you are swapping wheels, you will have to do more adjusting. For tires in the 50+ mm size range, the extra width can stabilize the sidewalls a bit so the ride is a bit more predictable. But for cross tires, I've found that a 23 mm rim offers a great improvement over a 19.5 mm or so rim, but the 25 doesn't do that much more. It just wasn't worth the hassles when swapping wheels.

JBC
Posts: 5
Joined: Sun Aug 17, 2014 9:01 pm

by JBC

But not such problem if using discs? The extra stability sounds good.

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the_marsbar
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by the_marsbar

Correct, no such problems when using discs. I'd probably try the 25 mm ones. By the way, which rims are they? I'd also be interested in some :)

JBC
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Joined: Sun Aug 17, 2014 9:01 pm

by JBC

Farsports Disc Tubulars, 38mm


Jens Westergren
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Location: Grycksbo Sweden
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by Jens Westergren

Looking to build 4 sets of carbon tubular CX disc wheels with center lock hubs. Has anyone seen a rim similar to the one mentioned below, but with a lower profile than 38 mm? More like 25-30 mm? With a descent price…
Basically I'm looking for a budget version of a Enve MTB XC 29er tubular both with a center lock 11 speed hub… are there such wheels?

preludervtec
Posts: 20
Joined: Mon Nov 01, 2010 3:53 am

by preludervtec

JBC wrote:Farsports Disc Tubulars, 38mm


Were you able to get a price quote on those? I emailed them last week about them and never got a response. If you did get a quote, how much were they?

weeni
in the industry
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Location: China
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by weeni

preludervtec wrote:
JBC wrote:Farsports Disc Tubulars, 38mm


Were you able to get a price quote on those? I emailed them last week about them and never got a response. If you did get a quote, how much were they?


about 100usd/pcs, not including the shipping, i think 23mm wide is perfer for cyclocross.
web: www.xmcarbonspeed.com
Email: bellajian@foxmail.com
Skype: bellajian1988

OnTheRivet
Posts: 31
Joined: Sat Jul 24, 2010 9:41 pm

by OnTheRivet

Jens Westergren wrote:Looking to build 4 sets of carbon tubular CX disc wheels with center lock hubs. Has anyone seen a rim similar to the one mentioned below, but with a lower profile than 38 mm? More like 25-30 mm? With a descent price…
Basically I'm looking for a budget version of a Enve MTB XC 29er tubular both with a center lock 11 speed hub… are there such wheels?


http://www.light-bicycle.com/tubular-mt ... _v51GPxw1I

ph445
Posts: 9
Joined: Mon Jun 22, 2015 2:17 am

by ph445

Front 23 Rear 25

Subira
Posts: 23
Joined: Sat Sep 12, 2009 10:42 pm

by Subira

I have a pair of the Light-Bicycle rims just landed, ready for my second wheelbuild.

I have the 23mm width / 32 hole / Tubulars, in the 3k finish. Rims weigh in at: 318gr and 322gr respectively. Quality looks good.

Their communucation was very good throughout, they quote that they are using Toray T700 carbon which swung it for me over other chinese brands, rims were $133 each, but you might get a deal for bulk.

Mine have the basalt coating on the rims even though they are for a disc build, thought they may get repurposed at some point.

I would post a picture if I could figure out how to do it, but in fairness they look just like the pics on their website.

I went with the 23mm rim as the back end on the existing Felt F1X is quite tight for clearance, and their 25mm 'U-shaped' rim is only listed in a 45mm as a tubular.

Tamu8104
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by Tamu8104

I have 2 pairs of Light-Bicycle rims and a 3rd set on the way. Both sets built up easy without any issues and came in lighter than advertised. Best combination of value and performance I've found.
Gaulzetti Cabron Disc = (weight unknown)
Rock Lobster Team Tig SL Disc = (pending)
Sold: Ridley X-Night Disc = 7.80 kg | Ridley Noah FAST = 6.86 | Ridley Fenix = 6.74 | Raleigh HiLife = 7.46 | Fuji SST = 7.34 | Van Dessel FTB = 7.58

boots2000
Posts: 1407
Joined: Mon Oct 15, 2007 9:28 pm

by boots2000

Anyone have a set of disc brake clinchers with Light-Bicycle shallow wider clincher. I think it is 24mm?
What is your wheel weight?

by Weenie


josephtroppo
Posts: 43
Joined: Wed Feb 11, 2015 11:18 am

by josephtroppo

Just to confirm what I've read; do you guys advise 23mm over 25mm for cyclocross?

I've switched to 23mm which was a huge improvement stability wise, so I'd reckon 25mm is even more of an improvement..

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