Road Bike Tire Comparison:
Challenge Strada Pro 2017 vs
Vittoria Zaffiro Pro G+ 2.0 2020

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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
  • Challenge Strada Pro
  • Vittoria Zaffiro Pro G+ 2.0
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)

Manufacturer Specifications


Manufacturer Specifications
Brand ChallengeVittoria
Model Strada ProZaffiro Pro G+ 2.0
Year 20172020
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 HighLow
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Manufacturer Part Number 11A.00.160
EAN 8022530020190
TPI 30060
Compound G+ 2.0
Bead FoldingFolding
ETRTO 25-62225-622
Size Inch 28"28"
Width mm 2525
Specified Weight 240 grams280 grams
Min Air Pressure 100 psi70 psi
Max Air Pressure 145 psi100 psi
Made In ThailandThailand
Available Sizes 25-622 (700x25C)23-622 (700x23c)
25-622 (700x25c)
28-622 (700x28c)
30-622 (700x30c)
32-622 (700x32c)
Image
Challenge Strada Pro 2017
Vittoria Zaffiro Pro G+ 2.0 2020
Image
Challenge Strada Pro 2017
Vittoria Zaffiro Pro G+ 2.0 2020
Image
Challenge Strada Pro 2017
Vittoria Zaffiro Pro G+ 2.0 2020

Size and Weight Measurements


Size and Weight Measurements
Model Strada ProZaffiro Pro G+ 2.0
Specified Weight 240 grams280 grams
Measured Weight 254 grams282 grams
System Adjusted Weight 354 grams
(tire + inner tube)
382 grams
(tire + inner tube)
Measured Width 27 mm26 mm
Measured Height 24 mm23 mm
Total Tire Thickness Center 2.3 mm3.3 mm
Total Tire Thickness Sidewall 1 mm0.85 mm
Unmounted Casing Width No Data66 mm
Unmounted Tread Width No Data32 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 Strada ProZaffiro Pro G+ 2.0
Inner Tube Conti Race28 (100gr butyl)Conti Race28 (100gr butyl)
Spin Up Video YouTubeYouTube
Rolling Resistance
140 PSI / 9.7 Bar
Not TestedNot Tested
Rolling Resistance
120 PSI / 8.3 Bar
13.4 Watts
CRR: 0.00402
15.2 Watts
CRR: 0.00456
Rolling Resistance
100 PSI / 6.9 Bar
14.0 Watts
CRR: 0.00420
16.3 Watts
CRR: 0.00489
Rolling Resistance
80 PSI / 5.5 Bar
15.3 Watts
CRR: 0.00459
18.2 Watts
CRR: 0.00546
Rolling Resistance
60 PSI / 4.1 Bar
17.9 Watts
CRR: 0.00537
21.6 Watts
CRR: 0.00647
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 Strada ProZaffiro Pro G+ 2.0
Puncture Resistance Tread 11 Points9 Points
Puncture Resistance Sidewall 3 Points3 Points

Conclusion


Conclusion
Model Strada ProZaffiro Pro G+ 2.0
Full Review Full ReviewFull Review
Verdict RecommendedNot Recommended
Rating 3 / 52 / 5
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  • Challenge Strada Pro
  • Vittoria Zaffiro Pro G+ 2.0
Performance compared to all other road bike tires
(100% is fastest - lightest - thickest - strongest)


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