Road Bike Tire Comparison:
Bontrager R4 320 2016 vs
Continental Gator Hardshell 2019

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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
  • Continental Gator Hardshell
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)

Manufacturer Specifications


Manufacturer Specifications
Brand BontragerContinental
Model R4 320Gator Hardshell
Year 20162019
Tire Type Tubetype (clincher)Tubetype (clincher)
Supplied By Bought in storeBought in store
Full Review Full ReviewFull Review
New or Used NewNew
Mileage 0 km0 km
Price Range Very HighHigh
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Manufacturer Part Number 0100313
EAN 4019238466409
TPI 3203/180
Compound
Bead FoldingFolding
ETRTO 25-62225-622
Size Inch 28"28"
Width mm 2525
Specified Weight 230 grams270 grams
Min Air Pressure 90 psi95 psi
Max Air Pressure 140 psi120 psi
Made In ThailandGermany
Available Sizes 25-622 (700x25C)23-622 (700x23c)
25-622 (700x25c)
28-622 (700x28c)
32-622 (700x32c)
Image
Bontrager R4 320 2016
Continental Gator Hardshell 2019
Image
Bontrager R4 320 2016
Continental Gator Hardshell 2019
Image
Bontrager R4 320 2016
Continental Gator Hardshell 2019

Size and Weight Measurements


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Size and Weight Measurements (Bike Wheel: 622-17C, Pressure: 100 psi / 6.8 bar)
Model R4 320Gator Hardshell
Specified Weight 230 grams270 grams
Measured Weight 226 grams273 grams
System Adjusted Weight 326 grams
(tire + inner tube)
373 grams
(tire + inner tube)
Measured Width 25 mm26 mm
Measured Height 22 mm23 mm
Total Tire Thickness Center 2.2 mm3.7 mm
Total Tire Thickness Sidewall 0.8 mm1 mm
Unmounted Casing Width No Data65 mm
Unmounted Tread Width No Data26 mm
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Rolling Resistance Test Results


Rolling Resistance Test Results (Speed: 29 kmh / 18 mph, Load: 42.5 kg)
Model R4 320Gator Hardshell
Inner Tube Conti Race28 (100gr butyl)Conti Race28 (100gr butyl)
Rolling Resistance 140 psi Not TestedNot Tested
Rolling Resistance 120 psi 11.5 Watts19.5 Watts
Rolling Resistance 100 psi 12.2 Watts20.5 Watts
Rolling Resistance 80 psi 13.9 Watts23.1 Watts
Rolling Resistance 60 psi 16.4 Watts27.4 Watts
CRR 140 psi / 9.7 Bar Not TestedNot Tested
CRR 120 psi / 8.1 Bar 0.003450.00585
CRR 100 psi / 6.8 Bar 0.003660.00615
CRR 80 psi / 5.5 Bar 0.004170.00692
CRR 60 psi / 4.1 Bar 0.004920.00821
Spin Up Video YouTubeYouTube
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Puncture Resistance Test Results


Puncture Resistance Test Results (higher is better)
Model R4 320Gator Hardshell
Puncture Resistance Tread 10 Points20 Points
Puncture Resistance Sidewall 4 Points8 Points
Loading Chart...

Conclusion


Conclusion
Model R4 320Gator Hardshell
Full Review Full ReviewFull Review
Verdict RecommendedRecommended
Rating 4 / 53 / 5
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  • Bontrager R4 320
  • Continental Gator Hardshell
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)


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