Road Bike Tire Comparison:
Continental Grand Prix 2014 vs
Specialized Turbo Cotton 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
  • Specialized Turbo Cotton
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)

Manufacturer Specifications


Manufacturer Specifications
Brand ContinentalSpecialized
Model Grand PrixTurbo Cotton
Year 20142016
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 MedVery High
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Manufacturer Part Number 010063700015-1503
EAN
TPI 3/180320
Compound Black ChiliGripton
Bead FoldingFolding
ETRTO 25-62224-622
Size Inch 28"28"
Width mm 2524
Specified Weight 245 grams220 grams
Min Air Pressure 110 psi psi
Max Air Pressure 120 psi125 psi
Made In GermanyThailand
Available Sizes 23-622 (700x23C)
25-622 (700x25C)
28-622 (700x28C)
23-571 (650x23C)
28-559 (26x1 1/8)
28-406 (20x1.10)
24-622 (700x24C)
26-622 (700x26C)
Image
Continental Grand Prix 2014
Specialized Turbo Cotton 2016
Image
Continental Grand Prix 2014
Specialized Turbo Cotton 2016
Image
Continental Grand Prix 2014
Specialized Turbo Cotton 2016

Size and Weight Measurements


Size and Weight Measurements
Model Grand PrixTurbo Cotton
Specified Weight 245 grams220 grams
Measured Weight 239 grams224 grams
System Adjusted Weight 339 grams
(tire + inner tube)
324 grams
(tire + inner tube)
Measured Width 26 mm25 mm
Measured Height 24 mm22 mm
Total Tire Thickness Center No Data2.1 mm
Total Tire Thickness Sidewall No Data0.75 mm
Unmounted Casing Width No DataNo Data
Unmounted Tread Width No DataNo Data
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 Grand PrixTurbo Cotton
Inner Tube Conti Race28 (100gr butyl)Conti Race28 (100gr butyl)
Spin Up Video No VideoYouTube
Rolling Resistance
140 PSI / 9.7 Bar
Not TestedNot Tested
Rolling Resistance
120 PSI / 8.3 Bar
14.0 Watts
CRR: 0.00420
10.1 Watts
CRR: 0.00303
Rolling Resistance
100 PSI / 6.9 Bar
14.5 Watts
CRR: 0.00435
11.1 Watts
CRR: 0.00333
Rolling Resistance
80 PSI / 5.5 Bar
15.9 Watts
CRR: 0.00477
12.5 Watts
CRR: 0.00375
Rolling Resistance
60 PSI / 4.1 Bar
18.5 Watts
CRR: 0.00555
15.0 Watts
CRR: 0.00450
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 Grand PrixTurbo Cotton
Puncture Resistance Tread 13 Points9 Points
Puncture Resistance Sidewall Not Tested4 Points

Conclusion


Conclusion
Model Grand PrixTurbo Cotton
Full Review Full ReviewFull Review
Verdict RecommendedHighly Recommended
Rating 4 / 55 / 5
Buy At Ad Amazon.com
  • Specialized Turbo Cotton
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)


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