MTB Tire Comparison:
Kenda Small Block Eight 2015 vs
Vittoria AKA 2015

Contents and Test Summary

  1. Manufacturer Specifications
  2. Size and Weight Measurements
  3. Rolling Resistance Test Results
  4. Puncture Resistance Test Results
  5. Static Grip Test Results
  6. Conclusion
  • Kenda Small Block Eight *
  • Vittoria AKA *
* Grip test data not available
Performance compared to all other MTB tires
(100% is best)
Pro Members get 11-point radar charts



Manufacturer Specifications


Manufacturer Specifications
Brand KendaVittoria
Model Small Block EightAKA
Year 20152015
Supplied By Bought in storeBought in store
Full Review Full ReviewFull Review
New or Used NewNew
Mileage 0 km0 km
Price Range HighHigh
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Manufacturer Part Number K1047 212509111.3A9.19.56.111HD
EAN
TPI 120120
Compound DTC
Bead FoldingFolding
ETRTO 54-62256-622
Size Inch 29"29"
Width Inch 2.102.20
Specified Weight 580 grams690 grams
Min Air Pressure 35 psi35 psi
Max Air Pressure 80 psi65 psi
Made In Members OnlyMembers Only
Available Sizes 29x2.1029x2.20
29x2.00
27.5x2.20
Image 1
Kenda Small Block Eight 2015
Vittoria AKA 2015
Image 2
Kenda Small Block Eight 2015
Vittoria AKA 2015
Image 3
Kenda Small Block Eight 2015
Vittoria AKA 2015
Image 4 Not AvailableNot Available

Size and Weight Measurements


Size and Weight Measurements
Model Small Block EightAKA
Specified Weight 580 grams690 grams
Measured Weight 589 grams685 grams
Measured Width Carcass 50 mm (un-round)52 mm (un-round)
Measured Width Tread 50 mm54 mm
Measured Height 50 mm (un-round)53 mm (un-round)
Measured Knob Height Center 2.5 mm2.5 mm
Measured Knob Height Edge 4.0 mm3.5 mm
Measured Casing Thickness Center 1.40 mm2.40 mm
Measured Total Thickness Sidewall Members OnlyMembers Only
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


Rolling Resistance Test Results
Model Small Block EightAKA
Spin Up Video No VideoNo Video
Inner Tube Conti MTB 29 (225 gr butyl)Conti MTB 29 (225 gr butyl)
Rolling Resistance
55 PSI / 3.8 Bar
Members OnlyMembers Only
Rolling Resistance
45 PSI / 3.1 Bar
Members OnlyMembers Only
Rolling Resistance
35 PSI / 2.4 Bar
30.2 Watts
CRR: 0.00905
38.0 Watts
CRR: 0.01139
Rolling Resistance
25 PSI / 1.7 Bar
35.6 Watts
CRR: 0.01067
40.7 Watts
CRR: 0.01220
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 Small Block EightAKA
Total Puncture Score Tread 23 Points53 Points
Total Puncture Score Sidewall Members OnlyMembers Only
Tread Puncture Force Sharp Needle Members OnlyMembers Only
Tread Puncture Force Blunt Needle Members OnlyMembers Only
Tread Total Tire Thickness 1.4 mm2.4 mm
Sidewall Puncture Force Sharp Needle Members OnlyMembers Only
Sidewall Puncture Force Blunt Needle Members OnlyMembers Only
Sidewall Total Tire Thickness Members OnlyMembers Only

Static Grip Test Results


Static Grip Test Results (higher is better)
Model Small Block EightAKA
Wet Grip Average No DataNo Data
Wet Grip Center Members OnlyMembers Only
Wet Grip Edge Members OnlyMembers Only
Measured Knob Height Center 2.5 mm2.5 mm
Measured Knob Height Edge 4.0 mm3.5 mm
Grip in points = coefficient of friction * 100
MTB grip test rim width = 30.0 mm
Wet Grip Test and Off-Road Tires (info)

Conclusion


Conclusion
Model Small Block EightAKA
Full Review Full ReviewFull Review
Verdict Not RecommendedNot Recommended
Rating 2.0 / 51.0 / 5
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  • Kenda Small Block Eight *
  • Vittoria AKA *
* Grip test data not available
Performance compared to all other MTB tires
(100% is fastest - lightest - highest - strongest)

Pro Members get 11-point radar charts