Diameters: 110 mm / 100 mm / 90 mm.
Durometers: 85A / 87A / 89A.
Rebound: ~85% (high rebound compound).
Tread Material: German polyurethane.
Hub/Core: TPU (thermoplastic polyurethane).
Surfaces: Concrete, asphalt, typical track.
Roll & Speed: ~85% rebound supports quick acceleration and speed retention on straights.
Grip Tuning: 85A for cooler/wet surfaces; 87A as all-round; 89A for hot tracks and sustained high speed.
Ride Feel: TPU hub tempers high-frequency buzz while preserving power transfer.
Durability: German PU targets abrasion resistance for daily training mileage.