Road Bike Tire Comparison:
Bontrager R4 320 2016 vs
Vittoria Corsa G+ (tubular) 2016

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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 G+ (tubular)
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)

Manufacturer Specifications


Manufacturer Specifications
Brand BontragerVittoria
Model R4 320Corsa G+ (tubular)
Year 20162016
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 111.1CX.00.25.411TG
EAN
TPI 320320
Compound 4C G+ Isotech
Bead FoldingTubular
ETRTO 25-62228x25
Size Inch 28"28"
Width mm 2525
Specified Weight 230 grams280 grams
Min Air Pressure 90 psi100 psi
Max Air Pressure 140 psi175 psi
Made In Thailand-
Available Sizes 25-622 (700x25C)28x23
28x25
28x28
Image
Bontrager R4 320 2016
Vittoria Corsa G+ (tubular) 2016
Image
Bontrager R4 320 2016
Vittoria Corsa G+ (tubular) 2016
Image
Bontrager R4 320 2016
Vittoria Corsa G+ (tubular) 2016

Size and Weight Measurements


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Size and Weight Measurements (Bike Wheel: 622-17C, Pressure: 100 psi / 6.8 bar)
Model R4 320Corsa G+ (tubular)
Specified Weight 230 grams280 grams
Measured Weight 226 grams281 grams
System Adjusted Weight 326 grams
(tire + inner tube)
291 grams
(tire + tubular glue)
Measured Width 25 mm25 mm
Measured Height 22 mm23 mm
Total Tire Thickness Center 2.2 mm2.3 mm
Total Tire Thickness Sidewall 0.8 mm0.65 mm
Unmounted Casing Width No DataNo Data
Unmounted Tread Width No Data30 mm
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Rolling Resistance Test Results


Rolling Resistance Test Results (Speed: 29 kmh / 18 mph, Load: 42.5 kg)
Model R4 320Corsa G+ (tubular)
Inner Tube Conti Race28 (100gr butyl)Tubular
Rolling Resistance 140 psi Not Tested11.9 Watts
Rolling Resistance 120 psi 11.5 Watts12.3 Watts
Rolling Resistance 100 psi 12.2 Watts12.8 Watts
Rolling Resistance 80 psi 13.9 Watts14.1 Watts
Rolling Resistance 60 psi 16.4 Watts16.4 Watts
CRR 140 psi / 9.7 Bar Not Tested0.00357
CRR 120 psi / 8.1 Bar 0.003450.00369
CRR 100 psi / 6.8 Bar 0.003660.00384
CRR 80 psi / 5.5 Bar 0.004170.00423
CRR 60 psi / 4.1 Bar 0.004920.00492
Spin Up Video YouTubeYouTube
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Puncture Resistance Test Results


Puncture Resistance Test Results (higher is better)
Model R4 320Corsa G+ (tubular)
Puncture Resistance Tread 10 Points11 Points
Puncture Resistance Sidewall 4 Points3 Points
Loading Chart...

Conclusion


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


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