MTB Tire Comparison:
Schwalbe Racing Ralph Performance 2012 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
  • 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 SchwalbeVittoria
Model Racing Ralph PerformanceAKA
Year 20122015
Supplied By Bought in storeBought in store
Full Review Full ReviewFull Review
New or Used UsedNew
Mileage 3000 km0 km
Price Range MedHigh
Buy At
Manufacturer Part Number 111.3A9.19.56.111HD
EAN
TPI 67120
Compound ORC
Bead FoldingFolding
ETRTO 57-62256-622
Size Inch 29"29"
Width Inch 2.252.20
Specified Weight 548 grams690 grams
Min Air Pressure psi35 psi
Max Air Pressure 65 psi65 psi
Made In Pro DataPro Data
Available Sizes 29x2.25
29x2.10
27.5x2.25
26x2.25
26x2.10
29x2.20
29x2.00
27.5x2.20
Image 1
Schwalbe Racing Ralph Performance 2012
Vittoria AKA 2015
Image 2
Schwalbe Racing Ralph Performance 2012
Vittoria AKA 2015
Image 3
Schwalbe Racing Ralph Performance 2012
Vittoria AKA 2015
Image 4 Not AvailableNot Available

Size and Weight Measurements


Size and Weight Measurements
Model Racing Ralph PerformanceAKA
Specified Weight 548 grams690 grams
Measured Weight 548 grams685 grams
Measured Width Carcass 54 mm (un-round)52 mm (un-round)
Measured Width Tread 54 mm54 mm
Measured Height 52 mm (un-round)53 mm (un-round)
Measured Knob Height Center 1.3 mm2.5 mm
Measured Knob Height Edge 4.2 mm3.5 mm
Measured Casing Thickness Center No Data2.40 mm
Measured Total Thickness Sidewall No DataPro Data
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 Racing Ralph PerformanceAKA
Spin Up Video No VideoNo Video
Inner Tube Conti MTB 29 (225 gr butyl)Conti MTB 29 (225 gr butyl)
Measured Width 54 mm52 mm
Rolling Resistance
Real tire width in mm:
47-50 = 42 psi/2.9 bar
51-55 = 38 psi/2.6 bar
56-60 = 34 psi/2.3 bar
High Air Pressure
Pro DataPro Data
Rolling Resistance
Real tire width in mm:
47-50 = 35 psi/2.4 bar
51-55 = 32 psi/2.2 bar
56-60 = 29 psi/2.0 bar
Medium Air Pressure
Pro DataPro Data
Rolling Resistance
Real tire width in mm:
47-50 = 28 psi/1.9 bar
51-55 = 25 psi/1.7 bar
56-60 = 23 psi/1.6 bar
Low Air Pressure
27.9 Watts
CRR: 0.00836
(25 psi / 1.7 bar)
40.7 Watts
CRR: 0.01220
(25 psi / 1.7 bar)
Rolling Resistance
Real tire width in mm:
47-50 = 21 psi/1.4 bar
51-55 = 19 psi/1.3 bar
56-60 = 17 psi/1.2 bar
Extra Low Air Pressure
Pro DataPro Data
The MTB section is a multi tire size section, air pressures have been adjusted to the measured casing width.

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 Racing Ralph PerformanceAKA
Total Puncture Score Tread No Data53 Points
Total Puncture Score Sidewall Pro DataPro Data
Tread Puncture Force Sharp Needle Pro DataPro Data
Tread Puncture Force Blunt Needle Pro DataPro Data
Tread Total Tire Thickness No Data2.4 mm
Sidewall Puncture Force Sharp Needle Pro DataPro Data
Sidewall Puncture Force Blunt Needle Pro DataPro Data
Sidewall Total Tire Thickness Pro DataPro Data

Static Grip Test Results


Static Grip Test Results (higher is better)
Model Racing Ralph PerformanceAKA
Wet Grip Average No DataNo Data
Wet Grip Center Pro DataPro Data
Wet Grip Edge Pro DataPro Data
Measured Knob Height Center 1.3 mm2.5 mm
Measured Knob Height Edge 4.2 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 Racing Ralph PerformanceAKA
Full Review Full ReviewFull Review
Verdict RecommendedNot Recommended
Rating 4.0 / 51.0 / 5
Buy At
  • 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