METZELER presents the Racetec SM K0, K1, K2 tyre:

• Supermotard use.
• New compounds better suited to different track conditions: progressive slip with excellent traction.
• Casing designed for good feedback and excellent self-damping.
• Profile designed for good handling in Supermotard riding, quick direction changes, superior contact feel, and great confidence in drift position.
• K0: mixed track
• K1: cold track
• K2: hot track

Road holding, braking, comfort... The choice of a motorcycle tyre impacts many aspects of your machine's behaviour, both on the road and on the track or off-road. It is therefore essential to carefully select the model that best meets your needs.
To help you gain clarity, here are some explanations that will assist you in deciphering the information found on motorcycle tyres:

• Dimensions: tyre width in millimetres and height of the tyre as a percentage of that width. E.g. 190/55, for 190 mm wide and 55% high
• Structure: radial (ZR, or R) or diagonal (B), both tyres must be identical in this regard
• Diameter: expressed in inches, e.g. 17 or 19
• Load index: maximum load the tyre can support
• Speed index: maximum speed the tyre can support
• M/C indicator: tyre purpose, M/C for motorcycles
• With or without inner tube: TL ("tubeless") for tubeless tyre, TT ("tubetype") with inner tube

Other less significant references are also found on the sidewall of motorcycle tyres (country of manufacture, DOT marking, etc.)
Don't forget to regularly check your tyre pressure, as it ensures longevity and superior performance!