Touring Bike Tire Comparison:
Continental E.Contact 2015 vs
Vredestein Perfect-E 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 E.Contact
  • Vredestein Perfect-E
Performance compared to all other touring bike tires
(100% is fastest - lightest - thickest - strongest)
Pro Members get 9-point radar charts

Manufacturer Specifications


Manufacturer Specs
Brand ContinentalVredestein
Model E.ContactPerfect-E
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
Buy At
Manufacturer Part Number 0100687
TPI 3/18030
Compound
Bead WireWire
ETRTO 37-62237-622
Size Inch 28"28"
Width mm 3737
Specified Weight 800 grams660 grams
Min Air Pressure 56 psi56 psi
Max Air Pressure 87 psi80 psi
Made In Members OnlyMembers Only
Available Sizes 47-622 (28x1.75)
42-622 (28x1.60)
37-622 (28x1.40)
47-559 (26x1.75)
47-622 (28x1.75)
40-622 (28x1.50)
37-622 (28x1.40)
47-559 (26x1.75)
Image
Continental E.Contact 2015
Vredestein Perfect-E 2015
Image
Continental E.Contact 2015
Vredestein Perfect-E 2015
Image
Continental E.Contact 2015
Vredestein Perfect-E 2015

Size and Weight Measurements


Size and Weight Measurements
Model E.ContactPerfect-E
Specified Weight 800 grams660 grams
Measured Weight 840 grams693 grams
Measured Width Casing 35 mm (un-round)37 mm (un-round)
Measured Height 35 mm (un-round)37 mm (un-round)
Tread Depth 2 mm2.2 mm
Total Tire Thickness Center 6.6 mm4.8 mm
Total Tire Thickness Sidewall Members OnlyMembers Only
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 E.ContactPerfect-E
Spin Up Video No VideoNo Video
Inner Tube Conti Tour 28 (170 gr butyl)Conti Tour 28 (170 gr butyl)
Rolling Resistance
90 PSI / 6 Bar
Members OnlyNo Data
Rolling Resistance
75 PSI / 5 Bar
29.6 Watts
CRR: 0.00887
24.6 Watts
CRR: 0.00737
Rolling Resistance
60 PSI / 4 Bar
33.4 Watts
CRR: 0.01001
27.3 Watts
CRR: 0.00818
Rolling Resistance
45 PSI / 3 Bar
Members OnlyMembers Only
Rolling Resistance
30 PSI / 2 Bar
Members OnlyMembers Only
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 E.ContactPerfect-E
Puncture Resistance Tread 16 Points13 Points
Puncture Resistance Side Members OnlyMembers Only
Puncture Factor Tread* 106 Points62 Points
Puncture Factor Side* Members OnlyMembers Only
* Puncture Factor = Puncture Resistance * Total Tire Thickness.
Puncture Factor provides a more realistic puncture resistance score for touring tires.

Conclusion


Conclusion
Model E.ContactPerfect-E
Full Review Full ReviewFull Review
Verdict Not RecommendedNot Recommended
Rating 2 / 52 / 5
Buy At
  • Continental E.Contact
  • Vredestein Perfect-E
Performance compared to all other touring bike tires
(100% is fastest - lightest - thickest - strongest)

Pro Members get 9-point radar charts
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