effective 23c tire width on Velocity A23 rims ~ 26mm
10-11-14, 09:37 PM
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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?
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?
10-11-14, 09:53 PM
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10-11-14, 10:01 PM
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+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.
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10-12-14, 06:23 AM
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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. )
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.
10-12-14, 11:08 AM
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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!
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.
10-12-14, 11:23 AM
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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.
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