Road Bike Tire Comparison:
Bontrager R4 320 2016 vs
Vittoria Corsa Speed (tubular) 2017

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Contents and Test Summary

  1. Manufacturer Specifications
  2. Size and Weight Measurements
  3. Rolling Resistance Test Results
  4. Puncture Resistance Test Results
  5. Conclusion
  • Bontrager R4 320
  • Vittoria Corsa Speed (tubular)
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)

Manufacturer Specifications


Manufacturer Specifications
Brand BontragerVittoria
Model R4 320Corsa Speed (tubular)
Year 20162017
Tire Type Tubetype (clincher)Tubular
Supplied By Bought in storeBought in store
Full Review Full ReviewFull Review
New or Used NewNew
Mileage 0 km0 km
Price Range Very HighVery High
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Manufacturer Part Number 111.1CS.00.23.411BX
EAN
TPI 320320
Compound G+
Bead FoldingTubular
ETRTO 25-62228x23
Size Inch 28"28"
Width mm 2523
Specified Weight 230 grams200 grams
Min Air Pressure 90 psi psi
Max Air Pressure 140 psi200 psi
Made In ThailandThailand
Available Sizes 25-622 (700x25C)28x23
Image
Bontrager R4 320 2016
Vittoria Corsa Speed (tubular) 2017
Image
Bontrager R4 320 2016
Vittoria Corsa Speed (tubular) 2017
Image
Bontrager R4 320 2016
Vittoria Corsa Speed (tubular) 2017

Size and Weight Measurements


Size and Weight Measurements (Bike Wheel: 622-17C, Pressure: 100 psi / 6.8 bar)
Model R4 320Corsa Speed (tubular)
Specified Weight 230 grams200 grams
Measured Weight 226 grams209 grams
System Adjusted Weight 326 grams
(tire + inner tube)
219 grams
(tire + tubular glue)
Measured Width 25 mm23 mm
Measured Height 22 mm21 mm
Total Tire Thickness Center 2.2 mm1.5 mm
Total Tire Thickness Sidewall 0.8 mm0.45 mm
Unmounted Casing Width No DataNo Data
Unmounted Tread Width No Data26 mm

Rolling Resistance Test Results


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Rolling Resistance Test Results (Speed: 29 kmh / 18 mph, Load: 42.5 kg)
Model R4 320Corsa Speed (tubular)
Inner Tube Conti Race28 (100gr butyl)Tubular
Spin Up Video YouTubeYouTube
Rolling Resistance
140 PSI / 9.7 Bar
Not Tested8.8 Watts
CRR: 0.00264
Rolling Resistance
120 PSI / 8.3 Bar
11.5 Watts
CRR: 0.00345
9.1 Watts
CRR: 0.00273
Rolling Resistance
100 PSI / 6.9 Bar
12.2 Watts
CRR: 0.00366
9.9 Watts
CRR: 0.00297
Rolling Resistance
80 PSI / 5.5 Bar
13.9 Watts
CRR: 0.00417
11.1 Watts
CRR: 0.00333
Rolling Resistance
60 PSI / 4.1 Bar
16.4 Watts
CRR: 0.00492
12.7 Watts
CRR: 0.00381
Use the formula: RR (Watts) = CRR * speed (m/s) * load (N) to calculate rolling resistance at a given speed and load.

Puncture Resistance Test Results


Puncture Resistance Test Results (higher is better)
Model R4 320Corsa Speed (tubular)
Puncture Resistance Tread 10 Points8 Points
Puncture Resistance Sidewall 4 Points3 Points

Conclusion


Conclusion
Model R4 320Corsa Speed (tubular)
Full Review Full ReviewFull Review
Verdict RecommendedHighly Recommended
Rating 4 / 55 / 5
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  • Bontrager R4 320
  • Vittoria Corsa Speed (tubular)
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)


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