Touring Bike Tire Comparison:
Continental 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 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 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 MedMed
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Manufacturer Part Number 0100262
TPI 3/180-
Compound
Bead WireWire
ETRTO 37-62237-622
Size Inch 28"28"
Width mm 3737
Specified Weight 620 grams734 grams
Min Air Pressure 60 psi50 psi
Max Air Pressure 88 psi75 psi
Made In IndiaChina
Available Sizes 47-622 (28x1.75)
42-622 (28x1.60)
37-622 (28x1.40)
32-622 (28x1.25)
28-622 (28x1.10)
37-622 (28x1.40)
Image
Continental Contact II 2015
CST E-Series Reach 2015
Image
Continental Contact II 2015
CST E-Series Reach 2015
Image
Continental Contact II 2015
CST E-Series Reach 2015

Size and Weight Measurements


Size and Weight Measurements (Bike Wheel: 622-17C, Pressure: 100 psi / 6.8 bar)
Model Contact IIE-Series Reach
Specified Weight 620 grams734 grams
Measured Weight 623 grams734 grams
Measured Width Casing 34 mm37 mm
Measured Height 31 mm34 mm
Tread Depth 1.8 mm1.1 mm
Total Tire Thickness Center 4.2 mm4.4 mm
Total Tire Thickness Sidewall 1.95 mm1.8 mm

Rolling Resistance Test Results


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Rolling Resistance Test Results (Speed: 29 kmh / 18 mph, Load: 42.5 kg)
Model 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
20.3 Watts
CRR: 0.00609
No Data
Rolling Resistance
75 PSI / 5 Bar
21.7 Watts
CRR: 0.00650
19.0 Watts
CRR: 0.00570
Rolling Resistance
60 PSI / 4 Bar
24.3 Watts
CRR: 0.00728
21.9 Watts
CRR: 0.00656
Rolling Resistance
45 PSI / 3 Bar
28.9 Watts
CRR: 0.00866
26.6 Watts
CRR: 0.00797
Rolling Resistance
30 PSI / 2 Bar
39.4 Watts
CRR: 0.01181
36.2 Watts
CRR: 0.01085
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 Contact IIE-Series Reach
Puncture Resistance Tread 11 Points10 Points
Puncture Resistance Side 7 Points6 Points
Puncture Factor Tread* 46 Points44 Points
Puncture Factor Side* 14 Points11 Points
* Puncture Factor = Puncture Resistance * Total Tire Thickness.
Puncture Factor provides a more realistic puncture resistance score for touring tires.

Conclusion


Conclusion
Model Contact IIE-Series Reach
Full Review Full ReviewFull Review
Verdict Not RecommendedRecommended
Rating 2 / 53 / 5
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  • Continental Contact II
  • CST E-Series Reach
Performance compared to all other touring bike tires
(100% is fastest - lightest - thickest - strongest)


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