Comparison of X-King, Mountain King, Race King and Twister tyres

Here's a comparison of data on the X-King, Race King and Twister tyres I've ridden:

TyreManf. Designated SizeWeight (actual)Width (tread)Width (casing)HeightPSI at which measurements takenTubeless setupNotes
X-King 2.4 Race Sport2.4585g56585520EasyWorks well tubeless, psi range of 18-22psi, extremely grippy in many conditions, XC to AM, ultimate front tyre
X-King 2.2 Race Sport2.2486g - 512g
52534922EasyWorks well tubeless, psi range of 20-24psi, not as grippy as X-King 2.4, similar level of dry grip to RK 2.2, slightly less in hardpack, slightly more in sand over hardpack, more grip than RK 2.2 in muddy conditions, less grip than RK 2.2 on wet rocks, XC front tyre
Mountain King 2.2 Supersonic2.2495g54505022ModerateRear tyre choice for loose over hardpack where the small knobs of the Race King can't bite down through the loose stuff.  Bigger side knobs than the Race King give the tyre more bite on loose over hardpack corners
Mountain King 2.2 Protection2.2660g54505020EasySee notes for Mountain King 2.2 Supersonic.  Perhaps less supple in the casing.  Slightly lower pressures possible
Race King 2.2 Race Sport2.2510g51565522EasyWorks well tubeless, psi range of 20-24psi, great XC, light AM, rear tyre
Race King 2.2 Supersonic2.2480g51565522HardGreat tyre with tubes, sidewalls too fragile for reliable tubeless, great rear tyre for XC
Race King 2.2 Protection2.256051565518
EasyStiffer sidewalls means you can run a little lower pressure.  Less supple than the Supersonic but reliable when used as tubeless on the rear, even in sharp rocky terrain
Race King 2.0 Supersonic2426g46504626Moderately hardWorks well tubeless although takes a number of days to seal up properly, great rear XCM race tyre or XC race tyre if course not too demanding
Twister 1.9 Supersonic1.9346g49474330Moderately hardWorks well tubeless although takes a number of days to seal up properly, great front XCM race tyre or XC race tyre if course not too demanding

Related articles:

Continental X-King Racesport Tyres

2.4 Race Sport

Specialized s-works carbon mountain crank arms

175mm cranks arms

Mountain King II Tyre

Weighs 610g for the Racesport 2.4" version;

Richey Superlogic 2X Mountain Bar handlebar

Quick facts:

Continental Race King Tubeless Setup Process

The Conti Race King Supersonics and Racesports can be a bit fiddly to get setup tubeless. Here's the procedure I use:

Continental Race King Supersonic 2.0

This is the 'little brother' of the Continental Race King Supersonic 2.2.