The Racer. In light of the extreme challenges of today's XC tracks, Racing Ralph has been completely redesigned. The result is a very fast and versatile XC profile, specifically developed for the rear wheel. Numerous grip edges in the profile center provide superb traction and excellent acceleration. At the same time, the tire offers outstanding rolling characteristics and is extremely quiet. ADDIX Speed (red) stands for speed, stability, and durability. Push your limits and demand the maximum from your tire. Under the highest stress, it reveals its true nature: more grip, more speed, more mileage. Experience a different dimension. ADDIX is the new compound for all legendary tires in the EVO-Line. ADDIX Speed is the compound for XC race specialists. It catapults Schwalbe's XC tires into a new performance dimension. ADDIX Speed truly loves only one thing: speed. To achieve this, rolling resistance is further reduced. It is lower than that of the previous PaceStar, while ADDIX Speed is also more durable and resilient. Highest quality materials. Latest technology. The evolution. For regular e-bikes with pedal assistance up to 25 km/h, the legislator does not specify any special tires. However, even with these bikes, loads and average speeds are higher than with regular bikes, which is why Schwalbe only recommends certain tires as "E-Bike ready 25". Intended use: MTB. E-bike compatibility: without manufacturer recommendation. Delivery includes: single tire. Weight: 660 g. Wheel size: 26-inch tire. Pressure: 1.8 Bar - 3.7 Bar. Tire size in inches: 26 x 2.25". Pressure: 26 - 54 psi. Tire size ETRTO in mm: 57 - 559 mm. Profile: HS 490. Maximum load capacity: 110 kg (approx.). Puncture protection.