Road Bike Tire Comparison:
Bontrager R4 320 2016 vs
Continental Grand Prix 5000 TL 2018

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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 Grand Prix 5000 TL
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)

Manufacturer Specifications


Manufacturer Specifications
Brand BontragerContinental
Model R4 320Grand Prix 5000 TL
Year 20162018
Tire Type Tubetype (clincher)Tubeless
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 0101628
EAN 4019238007923
TPI 3203/180
Compound Black Chili
Bead FoldingFolding
ETRTO 25-62225-622
Size Inch 28"28"
Width mm 2525
Specified Weight 230 grams300 grams
Min Air Pressure 90 psi80 psi
Max Air Pressure 140 psi109 psi
Made In ThailandGermany
Available Sizes 25-622 (700x25C)25-622 (700x25c)
28-622 (700x28c)
32-622 (700x32c)
28-584 (650x25b)
Image
Bontrager R4 320 2016
Continental Grand Prix 5000 TL 2018
Image
Bontrager R4 320 2016
Continental Grand Prix 5000 TL 2018
Image
Bontrager R4 320 2016
Continental Grand Prix 5000 TL 2018

Size and Weight Measurements


Size and Weight Measurements
Model R4 320Grand Prix 5000 TL
Specified Weight 230 grams300 grams
Measured Weight 226 grams295 grams
System Adjusted Weight 326 grams
(tire + inner tube)
315 grams
(tire + valve + rim seal)
Measured Width 25 mm27 mm
Measured Height 22 mm24 mm
Total Tire Thickness Center 2.2 mm2.8 mm
Total Tire Thickness Sidewall 0.8 mm0.95 mm
Unmounted Casing Width No Data66 mm
Unmounted Tread Width No Data27 mm
All size measurements are taken at an air pressure of 100 psi / 6.9 bars on a 17.8 mm inner width rim.

Rolling Resistance Test Results


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Rolling Resistance Test Results
Model R4 320Grand Prix 5000 TL
Inner Tube Conti Race28 (100gr butyl)None (20 ml sealant)
Spin Up Video YouTubeYouTube
Rolling Resistance
140 PSI / 9.7 Bar
Not TestedNot Tested
Rolling Resistance
120 PSI / 8.3 Bar
11.5 Watts
CRR: 0.00345
8.3 Watts
CRR: 0.00249
Rolling Resistance
100 PSI / 6.9 Bar
12.2 Watts
CRR: 0.00366
8.9 Watts
CRR: 0.00267
Rolling Resistance
80 PSI / 5.5 Bar
13.9 Watts
CRR: 0.00417
9.9 Watts
CRR: 0.00297
Rolling Resistance
60 PSI / 4.1 Bar
16.4 Watts
CRR: 0.00492
11.6 Watts
CRR: 0.00348
All numbers are for a single tire at a speed of 29 km/h / 18 mph and a load of 42.5 kg / 94 lbs.

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 320Grand Prix 5000 TL
Puncture Resistance Tread 10 Points10 Points
Puncture Resistance Sidewall 4 Points6 Points

Conclusion


Conclusion
Model R4 320Grand Prix 5000 TL
Full Review Full ReviewFull Review
Verdict RecommendedHighly Recommended
Rating 4 / 55 / 5
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  • Bontrager R4 320
  • Continental Grand Prix 5000 TL
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)


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