The Schwalbe Rapid Rob A/R tire is ideal for mountain lovers. With its K-Guard technology and SBC compound, it guarantees greater durability and resistance. Its 57-622 ETRTO rigid rim design and 29x2.25 size make it perfect for difficult and demanding terrain. Product: Cover Size: 29x2.25 Diameter: 29 Width: 2.25 Camera: Camera Modality: MTB Hoop: Rigid ETRTO: 57-622 Compound: SBC Technology: K-Guard BAR: 1.8-3.7 PSI: 26-54 TPI: 50 Model: Rapid Rob Weight in grams (±3%): 790