Touring Bike Tire Comparison:
Continental Top Contact II 2015 vs
CST E-Series Reach 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 Top Contact II
  • CST E-Series Reach
Performance compared to all other touring bike tires
(100% is fastest - lightest - thickest - strongest)

Manufacturer Specifications


Manufacturer Specs
Brand ContinentalCST
Model Top Contact IIE-Series Reach
Year 20152015
Supplied By Supplied by ContinentalSupplied by Continental
Full Review Full ReviewFull Review
New or Used NewNew
Mileage 0 km0 km
Price Range HighMed
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Manufacturer Part Number 0100441
TPI 3/180-
Compound
Bead FoldingWire
ETRTO 37-62237-622
Size Inch 28"28"
Width mm 3737
Specified Weight 600 grams734 grams
Min Air Pressure 50 psi50 psi
Max Air Pressure 88 psi75 psi
Made In GermanyChina
Available Sizes 47-622 (28x1.75)
42-622 (28x1.60)
37-622 (28x1.40)
50-559 (26x2.00)
37-622 (28x1.40)
Image
Continental Top Contact II 2015
CST E-Series Reach 2015
Image
Continental Top Contact II 2015
CST E-Series Reach 2015
Image
Continental Top Contact II 2015
CST E-Series Reach 2015

Size and Weight Measurements


Size and Weight Measurements
Model Top Contact IIE-Series Reach
Specified Weight 600 grams734 grams
Measured Weight 584 grams734 grams
Measured Width Casing 37 mm37 mm
Measured Height 35 mm34 mm
Tread Depth 2.5 mm1.1 mm
Total Tire Thickness Center 4.4 mm4.4 mm
Total Tire Thickness Sidewall 1.05 mm1.8 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 Top Contact IIE-Series Reach
Inner Tube Conti Tour 28 (170 gr butyl)Conti Tour 28 (170 gr butyl)
Spin Up Video No VideoNo Video
Rolling Resistance
90 PSI / 6 Bar
21.0 Watts
CRR: 0.00629
No Data
Rolling Resistance
75 PSI / 5 Bar
22.1 Watts
CRR: 0.00662
19.0 Watts
CRR: 0.00570
Rolling Resistance
60 PSI / 4 Bar
24.2 Watts
CRR: 0.00725
21.9 Watts
CRR: 0.00656
Rolling Resistance
45 PSI / 3 Bar
28.4 Watts
CRR: 0.00851
26.6 Watts
CRR: 0.00797
Rolling Resistance
30 PSI / 2 Bar
35.6 Watts
CRR: 0.01067
36.2 Watts
CRR: 0.01085
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 Top Contact IIE-Series Reach
Puncture Resistance Tread 16 Points10 Points
Puncture Resistance Side 6 Points6 Points
Puncture Factor Tread* 70 Points44 Points
Puncture Factor Side* 6 Points11 Points
* Puncture Factor = Puncture Resistance * Total Tire Thickness.
Puncture Factor provides a more realistic puncture resistance score for touring tires.

Conclusion


Conclusion
Model Top Contact IIE-Series Reach
Full Review Full ReviewFull Review
Verdict RecommendedRecommended
Rating 3 / 53 / 5
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  • Continental Top Contact II
  • CST E-Series Reach
Performance compared to all other touring bike tires
(100% is fastest - lightest - thickest - strongest)


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