The cross-country rocket combines speed and cornering control at the highest possible level. An excellent all-rounder for racetracks. Ultra light with 127-Epi-Evo-carcass. Tread design: Balanced proportion between stable studs and sufficient gaps for excellent rolling characteristics and amazing self-cleaning properties. 27.5+ versions with additional stud rows. Tubeless Easy version: Addix Speed (red) or Addix Speedgrip (blue). LiteSkin version:Addix Speed (red). With 127-EPI-Evo-carcass.Specifications:- Size: 54-622 (29 x 2.10)- Performance: SnakeSkin, TL Easy- Compound: Addix SpeedTechnology:Tubeless Technology:- We at Schwalbe believe that tubeless is the tire technology of the future!Performance Line:- Excellent quality for intensive use. - These are the best value for money tires.Triple Compound Mtb:- Our best and most sophisticated compound. Triple compound. Perfecftly adapted to the specific purpose.Evo Line:- The very best possible.- Highest grade materials.- Latest technology.Liteskin:- The lightest option. LiteSkin MTB tires forego SnakeSkin, but still have high pressure resistant tire beads. If you don´t mind the extra effort, these tires can also be converted to Tubeless by using a liquid sealant.27.5+:- This new size combines the best of two worlds - the MTB and the Fatbike. It's not about a new bike category. It is simply about more mountain bike performance! The simple effect: Bigger tire volume allows for significantly lower air pressure. The change can be clearly felt: more grip, more comfort, more suspension, more safety.Tubeless Easy Snakeskin:- Standard in our Evo tires! The SnakeSkin material assures cut-resistant sidewalls and extremely easy Tubeless conversion.