Pacenti SL23 with 23mm GP4000- 24.2mm (~500mi of use).
If we get enough contributions I can maintain a list at the top of this thread.
If anyone has measurements for the new HED Belgian Plus that would be awesome!
HED Jet6 + with 25C Continental GP4000SII - 29.56mm (~2000 miles of use)
HED Jet6 + with 23C Continental GP4000SII - 26.15mm (300 miles of use)
Pacenti SL23 with 25C Continental GP4000SII -28.21mm (~2000 miles of use, switched directly onto the Jet6 for above measurement)
1. Tire pressure.
2. Internal bead diameter of rim (width), not width at brake track.
3. Age of the tire. New tires will measure less than aged tires as they will stretch a little with time.
4. Measurements should be taken at different points of the tire and averaged out.
5. Operator error (i.e. squeezing calipers too hard against sidewall of tire can give skewed results).
Bora Clincher/Tire Width:
Conti GP4000S II (23c) = 25.4mm
Conti GP4000S II (25c) = 26.7mm
Vredestein Senso (25c) = 25.4mm
Schwalbe One (25c) = 26.2mm
Bora Tubular/Tire Width:
Vittoria Corsa CXIII (25c) = 26.0mm
Sam wrote:What is the specified width of the GP4000s II tire?
25 mm! Good catch..Conti definitely does balloon to a bigger size when on a fatty rim!
Vittoria CG Pave green stripe (Pro Series 2015 model)
25mm model @ 90psi comes in at 25.2mm wide and sits 22.4mm above the rim
27mm model @ 90psi comes in at 26.8mm wide and sits 24.6mm above the rim
Fitted to Velocity Major Tom tubular rims with machined tracks (23mm rim width) measured directly opposite the valve
FMB Competition CX (Silk casing model)
25mm model @ 90 psi comes in at exactly 25mm wide and sits 22.4mm above the rim
The 27mm Vittoria CG Pave on the rear of my Colango EP is tightest under the rear brake bridge with circa 2.8mm clearance at heighest point ie the hump.
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