Image: manufacturer · Source
Continental
Tested
Strong in comparison
20.6 W · rank 6 of 20 comparable XC tires
3.9 W behind the best value in the same test series. Fewer watts is better – every watt saved stays in the drivetrain.
Leichter XC-Klassiker mit sehr niedrigem Rollwiderstand.
Width, casing, compound and pressure – every value on this page follows your pick.
Width, casing and compound decide how a tire really rides. We only show what was actually measured – and label estimates honestly.
Reference: recommended pressure 24 psi (1.65 bar) – an assumption, not a test pressure.
More pressure: less rolling resistance, less grip, less comfort. Tougher casing: more protection, more weight. Softer compound: more grip, more rolling resistance.
Modelled values are assumptions based on the stated measurement points – not a lab test.
Editorial assessment on a 1–10 scale. Grip index: 5.3
These grades describe the tire model, not one specific width or compound – no reliable per-version grades exist.
No data
Scores from 1 to 10: higher is better.
Every variant the manufacturer lists, with its own claimed data. Missing values stay blank.
| 27.5" | 2" · 50 mm | Wire | PureGrip | 640 g | E-25 | €26 |
| 27.5" | 2.2" · 55 mm | Wire | PureGrip | 680 g | E-25 | €26 |
| 29" | 2" · 50 mm | Wire | PureGrip | 680 g | E-25 | €26 |
| 29" | 2.2" · 55 mm | Wire | PureGrip | 725 g | E-25 | €26 |
The value in brackets is our brand-neutral casing class (Light, Trail, Enduro, Downhill) – not a manufacturer statement.
Real test-rig values – not an estimate. Tested variant: Race King Protection (tanwall) 2.2 (gemessene Variante).
Watts measured on the test rig: lower is better. The 1-10 ratings on this page: higher is better.
No lab of our own: measurements come from the third-party test named above – the source is linked directly.
Rank 6 of 20 · lower is better
Rank 15 of 20 · higher is better
Rank 4 of 20 · lower is better
Test series: Bicycle Rolling Resistance – MTB-Messreihe
Measured values per compound and casing from the same laboratory test. Empty cells mean no reliable value was published.
| Race King Performance ShieldWall 2.2 | 29 x 2.20 | 24.9 W | 68 | 32 | – | 55 mm | 720 g | – |
| Race King Protection (E-25) 2.2 | 29 x 2.20 | 18.2 W | 57 | 30 | – | 54 mm | 586 g | – |
| Race King Protection (tanwall) 2.2 | 29 x 2.20 | 20.6 W | 63 | 34 | – | 53 mm | 618 g | – |
| Race King Protection 2.2 | 29 x 2.20 | 15.7 W | 59 | 29 | – | 53 mm | 588 g | – |
Wet grip is measured in the lab on a hard wet surface – it is not off-road grip.
lower is better
Up to three versions at once: the curve is modelled rolling resistance across pressure, the dot is the real lab measurement. Click the legend to show or hide a version.
The curve shape is a physics model, not a measurement. Labs do not measure grip across pressure – we do not invent that curve. Wet grip is a lab value per tire model, not per version.
Three curves at most – hide one first.
Hardness steps are our classification based on manufacturer information. All numbers come from lab tests; sources are linked on the tire pages. All information without warranty.
Tested: Calculated from the stored measurements – compared only within the same test series and category (XC).
Strong in comparison
20.6 W · rank 6 of 20 comparable XC tires
3.9 W behind the best value in the same test series. Fewer watts is better – every watt saved stays in the drivetrain.
Weaker in comparison
63 points · rank 15 of 20 comparable XC tires
9 points behind the best value in the same test series. More points means more compound grip on smooth surfaces.
Strong in comparison
618 g · rank 4 of 20 comparable XC tires
26 g behind the best value in the same test series. Fewer grams is better, but usually costs casing stability.
Measurements from different test rigs are not directly comparable – Sources & method.
Our own summaries – the full test is available at the source.
MTB-News.de
May 2018The editors test the Continental Race King RaceSport, also raced in the World Cup by the AMG Rotwild team. The tightly spaced, flat tread blocks provide good grip on firm terrain while keeping rolling resistance low. The Race King confirms its reputation as a popular XC classic.
To the source
Vittoria