Road Bike Tire Comparison:
Continental Grand Prix 2014 vs
Michelin Pro 4 Service Course 2014

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Manufacturer Specifications


Manufacturer Specifications
Brand ContinentalMichelin
Model Grand PrixPro 4 Service Course
Year 20142014
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 MedMed
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Manufacturer Part Number 0100637446783
EAN
TPI 3/180110
Compound Black ChiliDual Compound
Bead FoldingFolding
ETRTO 25-62225-622
Size Inch 28"28"
Width mm 2525
Specified Weight 245 grams215 grams
Min Air Pressure 110 psi73 psi
Max Air Pressure 120 psi109 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)
20-622 (700x20C)
23-622 (700x23C)
25-622 (700x25C)
23-671 (650x23C)
Image
Continental Grand Prix 2014
Michelin Pro 4 Service Course 2014
Image
Continental Grand Prix 2014
Michelin Pro 4 Service Course 2014
Image
Continental Grand Prix 2014
Michelin Pro 4 Service Course 2014

Size and Weight Measurements


Size and Weight Measurements
Model Grand PrixPro 4 Service Course
Specified Weight 245 grams215 grams
Measured Weight 239 grams222 grams
System Adjusted Weight 339 grams
(tire + inner tube)
322 grams
(tire + inner tube)
Measured Width 26 mm28 mm
Measured Height 24 mm26 mm
Total Tire Thickness Center No Data2.9 mm
Total Tire Thickness Sidewall No Data0.55 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 PrixPro 4 Service Course
Inner Tube Conti Race28 (100gr butyl)Conti Race28 (100gr butyl)
Spin Up Video No VideoNo Video
Rolling Resistance
140 PSI / 9.7 Bar
Not TestedNot Tested
Rolling Resistance
120 PSI / 8.3 Bar
14.0 Watts
CRR: 0.00420
14.9 Watts
CRR: 0.00447
Rolling Resistance
100 PSI / 6.9 Bar
14.5 Watts
CRR: 0.00435
16.0 Watts
CRR: 0.00480
Rolling Resistance
80 PSI / 5.5 Bar
15.9 Watts
CRR: 0.00477
17.6 Watts
CRR: 0.00528
Rolling Resistance
60 PSI / 4.1 Bar
18.5 Watts
CRR: 0.00555
20.1 Watts
CRR: 0.00603
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 PrixPro 4 Service Course
Puncture Resistance Tread 13 Points15 Points
Puncture Resistance Sidewall Not Tested6 Points

Conclusion


Conclusion
Model Grand PrixPro 4 Service Course
Full Review Full ReviewFull Review
Verdict RecommendedRecommended
Rating 4 / 54 / 5
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  • Michelin Pro 4 Service Course
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)


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