Go Back  Bike Forums > Bike Forums > Road Cycling
Reload this Page >

effective 23c tire width on Velocity A23 rims ~ 26mm

Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

effective 23c tire width on Velocity A23 rims ~ 26mm

Old 10-11-14, 09:37 PM
Senior Member
Thread Starter
Join Date: Jun 2011
Location: Madison, AL
Posts: 693

Bikes: 2010 Felt DA, 2012/6 Felt F5, 2015 Felt AR FRD

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 27 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
effective 23c tire width on Velocity A23 rims ~ 26mm

I couldn't resist the $10.00 digital calipers from Harbor Freight today. Since this morning I've been measuring random items, just to see what I can see. I've got the A23 rims, and I was surprised at how wide my tires actually were on them.

Running 23c Continental Grand Prix's (not 4000), the tire width was nearly 26mm! (25.8mm to be exact).

A question for those out there: If anyone has a set of Pacenti SL23 rims, what is the effective tire width with 23c's?
KBentley57 is offline  
Old 10-11-14, 09:53 PM
Senior Member
rpenmanparker's Avatar
Join Date: Dec 2009
Location: Houston, TX
Posts: 28,682

Bikes: 1990 Romic Reynolds 531 custom build, Merlin Works CR Ti custom build, super light Workswell 066 custom build

Mentioned: 107 Post(s)
Tagged: 1 Thread(s)
Quoted: 6556 Post(s)
Likes: 0
Liked 58 Times in 36 Posts
Depends on the tire.

Originally Posted by LAJ
No matter where I go, here I am...
rpenmanparker is offline  
Old 10-11-14, 10:01 PM
dtrain's Avatar
Join Date: May 2005
Location: Stafford, OR
Posts: 4,801
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Originally Posted by rpenmanparker
Depends on the tire.
+1. I have Michelin PR3's in 23 and 25. They all seem wider than advertised on traditional rims. They are huge on the HED Belgium and SL23's I'm running. I should grab some calipers one day.
"The older you do get, the more rules they're gonna try to get you to follow. You just gotta keep livin', man, L-I-V-I-N." - Wooderson

'14 carbon Synapse - '12 CAAD 10 5 - '99 Gary Fisher Big Sur
dtrain is offline  
Old 10-12-14, 06:23 AM
rm -rf
don't try this at home.
rm -rf's Avatar
Join Date: Jan 2006
Location: N. KY
Posts: 5,737
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 894 Post(s)
Liked 337 Times in 245 Posts
HED Ardennes Plus rims are 25.6 mm wide, with 23c GP4000S II at 26.7 mm wide. This combination works great.
edit--25c Hutchinson Fusion 3 tires are 27.0mm on the same rims.

Kinlin 30 rims are 18.4 mm, with 25c GP4000S at 26.5 mm.

(Yeah, those cheap Harbor Freight digital calipers are pretty useful. I've used it much more often than I expected to. Get the ones with the small thumb roller under the head section. )

Last edited by rm -rf; 12-08-14 at 11:16 AM.
rm -rf is offline  
Old 10-12-14, 11:08 AM
Thread Killer
Join Date: Aug 2008
Location: Ann Arbor, MI
Posts: 12,240

Bikes: 15 Kinesis Racelight 4S, 76 Motebecane Gran Jubilée, 17 Dedacciai Gladiatore2, 12 Breezer Venturi, 09 Dahon Mariner, 12 Mercier Nano, 95 DeKerf Team SL, 19 Tern Rally, 21 Breezer Doppler Cafe+, 19 T-Lab X3, 91 Serotta CII

Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 2453 Post(s)
Liked 1,540 Times in 940 Posts
What's important in determining tire width from rim width is not the overall width of the rim, but specifically the bead seat width (BSW); too bad those specs aren't more readily available.

Those HED A+, for example, are 25.6mm wide (25 according to HED), but 20.7mm internal. Regular Ardennes are 23mm wide, with a 17mm BSW. Compare the American Classic Argent rims which measure out at 22mm wide, but with a 19.5mm BSW . External width does not tell the whole story.

For reference, Schwalbe One 23c on the Argents measure out (with my HF Cen-Tech digital calipers) to 26mm.

EDIT: for fun, I just measured my 20mm wide, 15mm BSW Velocity Aeroheads with 25c Michelin Optimums: 26.9mm casing width! Chubby tire! Mavic Ksyrium Equipe Ss rims clock in at 20.2mm external, 14.9mm BSW, and 23c Panaracer Race Type A Evos come in at 22.8mm. Skinny tire!

Last edited by chaadster; 10-12-14 at 11:38 AM.
chaadster is offline  
Old 10-12-14, 11:23 AM
Have bike, will travel
Barrettscv's Avatar
Join Date: Feb 2006
Location: Lake Geneva, WI
Posts: 12,392

Bikes: Ridley Helium SLX, Canyon Endurance SL, De Rosa Professional, Eddy Merckx Corsa Extra, Schwinn Paramount (1 painted, 1 chrome), Peugeot PX10, Serotta Nova X, Simoncini Cyclocross Special, Raleigh Roker, Pedal Force CG2 and CX2

Mentioned: 46 Post(s)
Tagged: 0 Thread(s)
Quoted: 909 Post(s)
Liked 285 Times in 156 Posts
My 700x25 Vittoria Corsa CX measure 27.5mm wide on a 25mm wide HED Ardenesse rim. I'm very please with both the low rolling resistance and ride quality.
When I ride my bike I feel free and happy and strong. I'm liberated from the usual nonsense of day to day life. Solid, dependable, silent, my bike is my horse, my fighter jet, my island, my friend. Together we will conquer that hill and thereafter the world.
Barrettscv is offline  
Related Topics
Thread Starter
Last Post
Road Cycling
02-15-18 01:37 PM
Road Cycling
05-03-17 04:59 PM
Classic & Vintage
10-30-16 01:49 PM
Road Cycling
06-16-15 08:30 PM
robert schlatte
Bicycle Mechanics
04-13-15 02:59 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.