Touring Bike Tire Comparison:
CST E-Series Reach 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
  • CST E-Series Reach
  • Vredestein Perfect-E
Performance compared to all other touring bike tires
(100% is fastest - lightest - thickest - strongest)

Manufacturer Specifications


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Manufacturer Specs
Brand CSTVredestein
Model E-Series ReachPerfect-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
TPI -30
Compound
Bead WireWire
ETRTO 37-62237-622
Size Inch 28"28"
Width mm 3737
Specified Weight 734 grams660 grams
Min Air Pressure 50 psi56 psi
Max Air Pressure 75 psi80 psi
Made In China
Available Sizes 37-622 (28x1.40)47-622 (28x1.75)
40-622 (28x1.50)
37-622 (28x1.40)
47-559 (26x1.75)
Image
CST E-Series Reach 2015
Vredestein Perfect-E 2015
Image
CST E-Series Reach 2015
Vredestein Perfect-E 2015
Image
CST E-Series Reach 2015
Vredestein Perfect-E 2015

Size and Weight Measurements


Size and Weight Measurements
Model E-Series ReachPerfect-E
Specified Weight 734 grams660 grams
Measured Weight 734 grams693 grams
Measured Width Casing 37 mm37 mm
Measured Height 34 mm37 mm
Tread Depth 1.1 mm2.2 mm
Total Tire Thickness Center 4.4 mm4.8 mm
Total Tire Thickness Sidewall 1.8 mm1.4 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 E-Series ReachPerfect-E
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
No DataNo Data
Rolling Resistance
75 PSI / 5 Bar
19.0 Watts
CRR: 0.00570
24.6 Watts
CRR: 0.00737
Rolling Resistance
60 PSI / 4 Bar
21.9 Watts
CRR: 0.00656
27.3 Watts
CRR: 0.00818
Rolling Resistance
45 PSI / 3 Bar
26.6 Watts
CRR: 0.00797
32.0 Watts
CRR: 0.00959
Rolling Resistance
30 PSI / 2 Bar
36.2 Watts
CRR: 0.01085
41.3 Watts
CRR: 0.01238
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-Series ReachPerfect-E
Puncture Resistance Tread 10 Points13 Points
Puncture Resistance Side 6 Points4 Points
Puncture Factor Tread* 44 Points62 Points
Puncture Factor Side* 11 Points6 Points
* Puncture Factor = Puncture Resistance * Total Tire Thickness.
Puncture Factor provides a more realistic puncture resistance score for touring tires.

Conclusion


Conclusion
Model E-Series ReachPerfect-E
Full Review Full ReviewFull Review
Verdict RecommendedNot Recommended
Rating 3 / 52 / 5
Buy At
  • CST E-Series Reach
  • Vredestein Perfect-E
Performance compared to all other touring bike tires
(100% is fastest - lightest - thickest - strongest)
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