MTB Tire Comparison:
Kenda Small Block Eight 2015 vs
Schwalbe Racing Ralph Performance 2012

Facebook like buttonTwitter like buttonEmail share button

Contents and Test Summary

  1. Manufacturer Specifications
  2. Size and Weight Measurements
  3. Rolling Resistance Test Results
  4. Puncture Resistance Test Results
  5. Conclusion
  • Kenda Small Block Eight
Performance compared to all other MTB tires
(100% is fastest - lightest - highest - strongest)

Manufacturer Specifications


Manufacturer Specifications
Brand KendaSchwalbe
Model Small Block EightRacing Ralph Performance
Year 20152012
Supplied By Bought in storeBought in store
Full Review Full ReviewFull Review
New or Used NewUsed
Mileage 0 km3000 km
Price Range HighMed
Buy At Ad Amazon.com
Manufacturer Part Number K1047 212509
EAN
TPI 12067
Compound DTCORC
Bead FoldingFolding
ETRTO 54-62257-622
Size Inch 29"29"
Width Inch 2.102.25
Specified Weight 580 grams548 grams
Min Air Pressure 35 psi psi
Max Air Pressure 80 psi65 psi
Made In TaiwanIndonesia
Available Sizes 29 x 2.1029 x 2.25
29 x 2.10
27.5 x 2.25
26 x 2.25
26 x 2.10
Image
Kenda Small Block Eight 2015
Schwalbe Racing Ralph Performance 2012
Image
Kenda Small Block Eight 2015
Schwalbe Racing Ralph Performance 2012
Image
Kenda Small Block Eight 2015
Schwalbe Racing Ralph Performance 2012

Size and Weight Measurements


Size and Weight Measurements
Model Small Block EightRacing Ralph Performance
Specified Weight 580 grams548 grams
Measured Weight 589 grams548 grams
Measured Width Carcass 50 mm54 mm
Measured Width Tread 50 mm54 mm
Measured Height 50 mm52 mm
Measured Knob Height Center 2.5 mm1.3 mm
Measured Knob Height Edge 4.0 mm4.2 mm
Measured Total Thickness Sidewall 0.50 mmNot Tested
Measured Casing Thickness Center 1.40 mmNot Tested
All size measurements are taken at an air pressure of 35 psi / 2.4 bars on a 17.8 mm inner width rim.

Rolling Resistance Test Results


advertisement
Rolling Resistance Test Results
Model Small Block EightRacing Ralph Performance
Inner Tube Conti MTB 29 (225 gr butyl)Conti MTB 29 (225 gr butyl)
Spin Up Video No VideoNo Video
Rolling Resistance
55 PSI / 3.8 Bar
25.5 Watts
CRR: 0.00764
19.3 Watts
CRR: 0.00579
Rolling Resistance
45 PSI / 3.1 Bar
27.0 Watts
CRR: 0.00809
20.9 Watts
CRR: 0.00626
Rolling Resistance
35 PSI / 2.4 Bar
30.2 Watts
CRR: 0.00905
23.7 Watts
CRR: 0.00710
Rolling Resistance
25 PSI / 1.7 Bar
35.6 Watts
CRR: 0.01067
27.9 Watts
CRR: 0.00836
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 Result (higher is better)
Model Small Block EightRacing Ralph Performance
Puncture Resistance Tread 6 Points10 Points
Puncture Resistance Side 5 PointsNot Tested

Conclusion


Conclusion
Model Small Block EightRacing Ralph Performance
Full Review Full ReviewFull Review
Verdict Not RecommendedRecommended
Rating 2 / 54 / 5
Buy At Ad Amazon.com
  • Kenda Small Block Eight
Performance compared to all other MTB tires
(100% is fastest - lightest - highest - strongest)


Get updates on new articles