Touring Bike Tire Comparison:
Schwalbe Kojak 2017 vs
Schwalbe Marathon Racer 2015

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Manufacturer Specifications


Manufacturer Specs
Brand SchwalbeSchwalbe
Model KojakMarathon Racer
Year 20172015
Supplied By Bought in storeSupplied by Schwalbe
Full Review Full ReviewFull Review
New or Used NewNew
Mileage 0 km0 km
Price Range MedMed
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Manufacturer Part Number 11600020.0111100290
TPI 6767
Compound SpeedGripSpeedGrip
Bead FoldingWire
ETRTO 35-62235-622
Size Inch 28"28"
Width mm 3535
Specified Weight 330 grams465 grams
Min Air Pressure 55 psi65 psi
Max Air Pressure 95 psi95 psi
Made In IndonesiaIndonesia
Available Sizes 32-355 (18x1.25)
32-369 (27x1 1/4)
35-406 (20x1.35)
35-559 (26x1.35)
50-559 (26x2.00)
35-622 (28x.135)
40-622 (28x1.50)
35-622 (28x1.35)
30-622 (28x1.20)
40-559 (26x1.50)
40-406 (20x1.50)
40-355 (18x1.50)
40-305 (16x1.50)
Image
Schwalbe Kojak 2017
Schwalbe Marathon Racer 2015
Image
Schwalbe Kojak 2017
Schwalbe Marathon Racer 2015
Image
Schwalbe Kojak 2017
Schwalbe Marathon Racer 2015

Size and Weight Measurements


Size and Weight Measurements
Model KojakMarathon Racer
Specified Weight 330 grams465 grams
Measured Weight 351 grams450 grams
Measured Width Casing 33 mm33 mm
Measured Height 31 mm32 mm
Tread Depth 0 mm1.5 mm
Total Tire Thickness Center 3.9 mm4.6 mm
Total Tire Thickness Sidewall 0.55 mm0.8 mm
All size measurements are taken at an air pressure of 60 psi / 4 bars on a 17.8 mm inner width rim.

Rolling Resistance Test Results


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Rolling Resistance Test Results
Model KojakMarathon Racer
Inner Tube Conti Tour 28 (170 gr butyl)Conti Tour 28 (170 gr butyl)
Spin Up Video YouTubeNo Video
Rolling Resistance
90 PSI / 6 Bar
20.5 Watts
CRR: 0.00615
20.9 Watts
CRR: 0.00626
Rolling Resistance
75 PSI / 5 Bar
21.9 Watts
CRR: 0.00656
22.6 Watts
CRR: 0.00677
Rolling Resistance
60 PSI / 4 Bar
24.8 Watts
CRR: 0.00743
24.6 Watts
CRR: 0.00737
Rolling Resistance
45 PSI / 3 Bar
29.1 Watts
CRR: 0.00872
28.8 Watts
CRR: 0.00863
Rolling Resistance
30 PSI / 2 Bar
37.5 Watts
CRR: 0.01124
38.3 Watts
CRR: 0.01148
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 KojakMarathon Racer
Puncture Resistance Tread 12 Points16 Points
Puncture Resistance Side 3 Points4 Points
Puncture Factor Tread* 47 Points74 Points
Puncture Factor Side* 2 Points3 Points
* Puncture Factor = Puncture Resistance * Total Tire Thickness.
Puncture Factor provides a more realistic puncture resistance score for touring tires.

Conclusion


Conclusion
Model KojakMarathon Racer
Full Review Full ReviewFull Review
Verdict Not RecommendedRecommended
Rating 2 / 53 / 5
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  • Schwalbe Kojak
  • Schwalbe Marathon Racer
Performance compared to all other touring bike tires
(100% is fastest - lightest - thickest - strongest)


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