CX/Gravel Tire Comparison:
Challenge Grifo Pro 2020 vs
Schwalbe G-One Ultrabite 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 Grifo Pro
  • Schwalbe G-One Ultrabite
Performance compared to all other CX/Gravel tires
(100% is fastest - lightest - highest - strongest)

Manufacturer Specifications


Manufacturer Specifications
Brand ChallengeSchwalbe
Model Grifo ProG-One Ultrabite
Year 20202020
Supplied By Bought in storeBought in store
Full Review Full ReviewFull Review
New or Used NewNew
Mileage 0 km0 km
Price Range HighHigh
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Manufacturer Part Number 11654035.01
EAN 88556270060324026495873802
TPI 300127
Compound Addix SpeedGrip
Bead FoldingFolding
ETRTO 33-62240-622
Specified Weight 0 grams480 grams
Min Air Pressure 30 psi45 psi
Max Air Pressure 40 psi70 psi
Made In ThailandIndonesia
Available Sizes 33-622 (700x33c)40-622 (700x38)
Image
Challenge Grifo Pro 2020
Schwalbe G-One Ultrabite 2020
Image
Challenge Grifo Pro 2020
Schwalbe G-One Ultrabite 2020
Image
Challenge Grifo Pro 2020
Schwalbe G-One Ultrabite 2020

Size and Weight Measurements


Size and Weight Measurements
Model Grifo ProG-One Ultrabite
Specified Weight 0 grams480 grams
Measured Weight 365 grams564 grams
Measured Width Casing 33 mm37 mm
Measured Width Tread 32 mm41 mm
Measured Height 31 mm36 mm
Measured Knob Height Center 1.7 mm2.3 mm
Measured Knob Height Edge 1.8 mm3.3 mm
Measured Total Thickness Sidewall 1.20 mm0.95 mm
Measured Casing Thickness Center 2.20 mm2.30 mm
All size measurements are taken at low air pressure on a 17.8 mm inner width rim.

Rolling Resistance Test Results


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Rolling Resistance Test Results
Model Grifo ProG-One Ultrabite
Inner Tube Conti Cross28 (160 gr)Conti Cross28 (160 gr)
Spin Up Video YouTubeYouTube
Measured Width 33 mm37 mm
Rolling Resistance
Real tire width in mm:
30-32 = 66 psi/4.6 bar
33-35 = 60 psi/4.1 bar
36-40 = 54 psi/3.7 bar
High Air Pressure
22.0 Watts
CRR: 0.00659
27.3 Watts
CRR: 0.00818
Rolling Resistance
Real tire width in mm:
30-32 = 55 psi/3.8 bar
33-35 = 50 psi/3.4 bar
36-40 = 45 psi/3.1 bar
Medium Air Pressure
23.2 Watts
CRR: 0.00695
28.0 Watts
CRR: 0.00839
Rolling Resistance
Real tire width in mm:
30-32 = 44 psi/3.0 bar
33-35 = 40 psi/2.8 bar
36-40 = 36 psi/2.6 bar
Low Air Pressure
25.7 Watts
CRR: 0.00770
29.8 Watts
CRR: 0.00893
Rolling Resistance
Real tire width in mm:
30-32 = 33 psi/2.3 bar
33-35 = 30 psi/2.1 bar
36-40 = 27 psi/1.9bar
Extra Low Air Pressure
30.6 Watts
CRR: 0.00917
33.3 Watts
CRR: 0.00998
The CX/Gravel section is a multi tire size section, air pressures have been adjusted to the measured casing width.

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 Result (higher is better)
Model Grifo ProG-One Ultrabite
Puncture Resistance Tread 9 Points8 Points
Puncture Resistance Side 5 Points5 Points

Conclusion


Conclusion
Model Grifo ProG-One Ultrabite
Full Review Full ReviewFull Review
Verdict RecommendedRecommended
Rating 4.0 / 53.0 / 5
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  • Challenge Grifo Pro
  • Schwalbe G-One Ultrabite
Performance compared to all other CX/Gravel tires
(100% is fastest - lightest - highest - strongest)


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