MTB Tire Comparison:
Continental Speed King II RaceSport 2015 vs
Continental X-King RaceSport 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
  • Continental Speed King II RaceSport
  • Continental X-King RaceSport
Performance compared to all other MTB tires
(100% is fastest - lightest - highest - strongest)

Manufacturer Specifications


Manufacturer Specifications
Brand ContinentalContinental
Model Speed King II RaceSportX-King RaceSport
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 01009330100531
EAN
TPI 3/1803/180
Compound Black ChiliBlack Chili
Bead FoldingFolding
ETRTO 55-62255-622
Size Inch 29"29"
Width Inch 2.202.20
Specified Weight 465 grams555 grams
Min Air Pressure psi psi
Max Air Pressure 65 psi65 psi
Made In GermanyGermany
Available Sizes 29 x 2.20
27.5 x 2.20
26 x 2.20
29 x 2.40
29 x 2.20
29 x 2.00
27.5 x 2.20
27.5 2.00
26 x 2.40
26 x 2.20
26 x 2.00
Image
Continental Speed King II RaceSport 2015
Continental X-King RaceSport 2015
Image
Continental Speed King II RaceSport 2015
Continental X-King RaceSport 2015
Image
Continental Speed King II RaceSport 2015
Continental X-King RaceSport 2015

Size and Weight Measurements


Size and Weight Measurements
Model Speed King II RaceSportX-King RaceSport
Specified Weight 465 grams555 grams
Measured Weight 467 grams564 grams
Measured Width Carcass 54 mm53 mm
Measured Width Tread 49 mm52 mm
Measured Height 53 mm51 mm
Measured Knob Height Center 0.5 mm2.5 mm
Measured Knob Height Edge 1.5 mm4.0 mm
Measured Total Thickness Sidewall 0.45 mm0.55 mm
Measured Casing Thickness Center 1.70 mm1.80 mm
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 Speed King II RaceSportX-King RaceSport
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
14.5 Watts
CRR: 0.00435
20.1 Watts
CRR: 0.00603
Rolling Resistance
45 PSI / 3.1 Bar
15.1 Watts
CRR: 0.00453
20.9 Watts
CRR: 0.00626
Rolling Resistance
35 PSI / 2.4 Bar
16.6 Watts
CRR: 0.00498
22.8 Watts
CRR: 0.00683
Rolling Resistance
25 PSI / 1.7 Bar
19.1 Watts
CRR: 0.00573
25.9 Watts
CRR: 0.00776
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 Speed King II RaceSportX-King RaceSport
Puncture Resistance Tread 7 Points10 Points
Puncture Resistance Side 4 Points6 Points

Conclusion


Conclusion
Model Speed King II RaceSportX-King RaceSport
Full Review Full ReviewFull Review
Verdict Highly RecommendedRecommended
Rating 5 / 54 / 5
Buy At Ad Amazon.com
  • Continental Speed King II RaceSport
  • Continental X-King RaceSport
Performance compared to all other MTB tires
(100% is fastest - lightest - highest - strongest)


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