This listing is for TWO quality Schwalbe tyres Type: Wired Execution: Kevlar Guard Compound: SBC Colour: Black Pressure: 30-55 psi Tubeless Ready: NO E-Bike Rating: N/A Weight: 725g Size: 54-622 (29 x 2.10) TOP CHOICE FOR ROOKIES. A first-class cross country tyre with excellent tread design and K-Guard puncture protection. The special XC tread ensures low rolling resistance by remaining low weight. PROTECTION: K-Guard - a layer of natural rubber, reinforced with Kevlar fibres SIDEWALLS: LiteSkin which offers light, thin sidewalls, for weight saving and reduced rolling resistance COMPOUND: SBC (Schwalbe Basic Compound) a versatile quality compound for all applications TPI: 50 TPI.