Rocket Ron EVO Super Ground Addix Speed Tubeless 27.5´´ x 2.25 MTB Tyre.Size:27.5´´ / 2.25.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:57-584 (27.5 x 2.25).- Performance:SnakeSkin, TL Easy.- Compound:Addix Speed Technology: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.