Road Bike Tire Comparison:
Continental Grand Prix 4000S II Latex Tube 2014 vs
Vittoria Zaffiro Slick 2015

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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
  • Continental Grand Prix 4000S II Latex Tube
  • Vittoria Zaffiro Slick
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)

Manufacturer Specifications


Manufacturer Specifications
Brand ContinentalVittoria
Model Grand Prix 4000S II Latex TubeZaffiro Slick
Year 20142015
Tire Type Tubetype (clincher)Tubetype (clincher)
Supplied By Bought in storeBought in store
Full Review Full Review
New or Used NewNew
Mileage 0 km0 km
Price Range HighLow
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Manufacturer Part Number 0100945111.3ZS.23.25.111TG
EAN
TPI 3/33026
Compound Black Chili
Bead FoldingWire
ETRTO 25-62225-622
Size Inch 28"28"
Width mm 2525
Specified Weight 225 grams370 grams
Min Air Pressure 95 psi100 psi
Max Air Pressure 120 psi130 psi
Made In GermanyThailand
Available Sizes 20-622 (700x20C)
23-622 (700x23C)
25-622 (700x25C)
28-622 (700x28C)
23-571 (650x23C)
23-622 (700x23C)
25-622 (700x25C)
28-622 (700x28C)
32-622 (700x32C)
Image
Continental Grand Prix 4000S II Latex Tube 2014
Vittoria Zaffiro Slick 2015
Image
Continental Grand Prix 4000S II Latex Tube 2014
Vittoria Zaffiro Slick 2015
Image
Continental Grand Prix 4000S II Latex Tube 2014
Vittoria Zaffiro Slick 2015

Size and Weight Measurements


Size and Weight Measurements
Model Grand Prix 4000S II Latex TubeZaffiro Slick
Specified Weight 225 grams370 grams
Measured Weight 215 grams398 grams
System Adjusted Weight 315 grams
(tire + inner tube)
498 grams
(tire + inner tube)
Measured Width 27 mm26 mm
Measured Height 25 mm24 mm
Total Tire Thickness Center 2.9 mm3.6 mm
Total Tire Thickness Sidewall 0.55 mm0.85 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 Prix 4000S II Latex TubeZaffiro Slick
Inner Tube Michelin LatexConti 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
10.6 Watts
CRR: 0.00318
15.7 Watts
CRR: 0.00471
Rolling Resistance
100 PSI / 6.9 Bar
11.1 Watts
CRR: 0.00333
17.1 Watts
CRR: 0.00513
Rolling Resistance
80 PSI / 5.5 Bar
11.8 Watts
CRR: 0.00354
20.1 Watts
CRR: 0.00603
Rolling Resistance
60 PSI / 4.1 Bar
13.3 Watts
CRR: 0.00399
24.4 Watts
CRR: 0.00731
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 Prix 4000S II Latex TubeZaffiro Slick
Puncture Resistance Tread 11 Points10 Points
Puncture Resistance Sidewall 5 Points4 Points

Conclusion


Conclusion
Model Grand Prix 4000S II Latex TubeZaffiro Slick
Full Review Full Review
Verdict Highly RecommendedNot Recommended
Rating 5 / 52 / 5
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  • Continental Grand Prix 4000S II Latex Tube
  • Vittoria Zaffiro Slick
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)


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