This listing is for TWO quality Continental tyres and choice of either schrader or presta valve inner tubes - Type: Wired - Size: 27.5 x 2.30 (650B) - ETRTO: 58-584 - Colour: Black - Weight: 775g - Pressure: 40-55 psi - Compound: Pure Grip - Tubeless Ready: NO - E-Bike Rating: E-25 The all-rounder The Cross-King impresses with its versatility. The smooth-running tyre for mountain bikes adapts to any terrain. It scores with perfect cornering grip and quiet rolling off. To this end, it offers very good grip with low rolling resistance; the special tread promotes self-cleaning. That makes it a first class competition and all-round tyre.