MTB Tire Comparison:
IRC Mythos XC 2017 vs
Schwalbe Racing Ralph Performance 2012

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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
  • IRC Mythos XC
Performance compared to all other MTB tires
(100% is fastest - lightest - highest - strongest)
Pro Members get 9-point radar charts

Manufacturer Specifications


Manufacturer Specifications
Brand IRCSchwalbe
Model Mythos XCRacing Ralph Performance
Year 20172012
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
Manufacturer Part Number
EAN
TPI 6067
Compound ORC
Bead FoldingFolding
ETRTO 54-62257-622
Size Inch 29"29"
Width Inch 2.252.25
Specified Weight 710 grams548 grams
Min Air Pressure 40 psi psi
Max Air Pressure 45 psi65 psi
Made In Members OnlyMembers Only
Available Sizes 26x1.95
26x2.10
26x2.25
27.5x2.10
29x2.10
29x2.25
29 x 2.25
29 x 2.10
27.5 x 2.25
26 x 2.25
26 x 2.10
Image
IRC Mythos XC 2017
Schwalbe Racing Ralph Performance 2012
Image
IRC Mythos XC 2017
Schwalbe Racing Ralph Performance 2012
Image
IRC Mythos XC 2017
Schwalbe Racing Ralph Performance 2012

Size and Weight Measurements


Size and Weight Measurements
Model Mythos XCRacing Ralph Performance
Specified Weight 710 grams548 grams
Measured Weight 701 grams548 grams
Measured Width Carcass 52 mm (un-round)54 mm (un-round)
Measured Width Tread 54 mm54 mm
Measured Height 51 mm (un-round)52 mm (un-round)
Measured Knob Height Center 2.2 mm1.3 mm
Measured Knob Height Edge 4.0 mm4.2 mm
Measured Total Thickness Sidewall Members OnlyNot Tested
Measured Casing Thickness Center 2.20 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


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Rolling Resistance Test Results
Model Mythos XCRacing Ralph Performance
Spin Up Video YouTubeNo 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
26.6 Watts
CRR: 0.00797
23.7 Watts
CRR: 0.00710
Rolling Resistance
25 PSI / 1.7 Bar
30.8 Watts
CRR: 0.00923
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 Mythos XCRacing Ralph Performance
Puncture Resistance Tread 6 Points10 Points
Puncture Resistance Side Members OnlyNot Tested

Conclusion


Conclusion
Model Mythos XCRacing Ralph Performance
Full Review Full ReviewFull Review
Verdict RecommendedRecommended
Rating 3 / 54 / 5
Buy At
  • IRC Mythos XC
Performance compared to all other MTB tires
(100% is fastest - lightest - highest - strongest)

Pro Members get 9-point radar charts
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