Schwalbe outer tire Marathon Plus MTB This puncture resistant tire has ECE-R75 approval for fast E-bikes. The tire rolls lightly on solid roads. The powerful outer studs provide good grip on dirt roads. The SmartGuard anti-puncture layer provides excellent puncture protection. Specifications: Inch size: 27.5 x 2.25 ETRTO size: 57-584 Type of bicycle: MTB Tire type: wire tyre Reflection: yes Color: black Material: rubber Tire pressure: 2.00/4.00 bar (30/55 psi) EPI: 67 Weight: 1295 grams Product type: HS468