CX/Gravel Tire Comparison:
Challenge Gravel Grinder 2020 vs
Panaracer GravelKing SK TLC 2020

Facebook like buttonTwitter like buttonEmail share button

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 Gravel Grinder
  • Panaracer GravelKing SK TLC
Performance compared to all other CX/Gravel tires
(100% is fastest - lightest - highest - strongest)

Manufacturer Specifications


Manufacturer Specifications
Brand ChallengePanaracer
Model Gravel GrinderGravelKing SK TLC
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
Buy At Ad Amazon.comAd Amazon.com
Manufacturer Part Number 00535RF738-GKSK-B
EAN 88556270053564931253016257
TPI 260-
Compound ZSG
Bead FoldingFolding
ETRTO 33-62240-622
Specified Weight 0 grams420 grams
Min Air Pressure 35 psi psi
Max Air Pressure 75 psi75 psi
Made In ThailandJapan
Available Sizes 33-622 (700x33x)
36-622 (700x36c)
32-622 (700x32c)
35-622 (700x35c)
40-622 (700x38c)
43-622 (700x43c)
50-622 (700x50c)
43-584 (650bx43)
48-584 (650bx48)
54-584 (650bx54)
26x2.10
Image
Challenge Gravel Grinder 2020
Panaracer GravelKing SK TLC 2020
Image
Challenge Gravel Grinder 2020
Panaracer GravelKing SK TLC 2020
Image
Challenge Gravel Grinder 2020
Panaracer GravelKing SK TLC 2020

Size and Weight Measurements


Size and Weight Measurements
Model Gravel GrinderGravelKing SK TLC
Specified Weight 0 grams420 grams
Measured Weight 412 grams404 grams
Measured Width Casing 33 mm37 mm
Measured Width Tread 33 mm36 mm
Measured Height 31 mm35 mm
Measured Knob Height Center 0.7 mm1.7 mm
Measured Knob Height Edge 2.3 mm1.7 mm
Measured Total Thickness Sidewall 1.20 mm0.70 mm
Measured Casing Thickness Center 2.60 mm1.70 mm
All size measurements are taken at low air pressure on a 17.8 mm inner width rim.

Rolling Resistance Test Results


advertisement
Rolling Resistance Test Results
Model Gravel GrinderGravelKing SK TLC
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
23.5 Watts
CRR: 0.00704
21.7 Watts
CRR: 0.00650
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
25.1 Watts
CRR: 0.00752
22.7 Watts
CRR: 0.00680
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
28.7 Watts
CRR: 0.00860
24.7 Watts
CRR: 0.00740
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
33.9 Watts
CRR: 0.01016
28.3 Watts
CRR: 0.00848
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 Gravel GrinderGravelKing SK TLC
Puncture Resistance Tread 15 Points7 Points
Puncture Resistance Side 4 Points7 Points

Conclusion


Conclusion
Model Gravel GrinderGravelKing SK TLC
Full Review Full ReviewFull Review
Verdict RecommendedRecommended
Rating 3.5 / 54.0 / 5
Buy At Ad Amazon.comAd Amazon.com
  • Challenge Gravel Grinder
  • Panaracer GravelKing SK TLC
Performance compared to all other CX/Gravel tires
(100% is fastest - lightest - highest - strongest)


Get updates on new articles