Schwalbe Ice Spiker Pro Performance TyreWith its deep studded tread with 402 spiked knobs for extra bite on snow and ice, the Ice Spiker tyre from Schwalbe will ensure you can confidently keep riding all through the winter. To ensure it still gives you a sporty, agile ride, each the tungsten carbide core of each spike has lightweight aluminium.Features: Compound: Winter Bead Type: Folding Casing: Single Ply, 67 tpi Puncture Protection: Yes, Double Defence and Raceguard Tubeless Compatible: Yes Sold Individually Recommended Tyre Pressures:  700c x 2.25": 1.5-3 Bar (20-45 psi) 27.5x2.25": 1.8- 3.7 Bar (26-54 psi) 27.5x2.6": 1.5-3 Bar (20-45 psi) Weights: 700c x 2.25": 935g 27.5x2.25": 965g 27.5x2.6": 1241gTechnologies: MTB-Double Defence and Raceguard: The combined puncture protection. All around SnakeSkin + RaceGuard under the tread provides maximum security Spikes: Spiked tread for extra grip in snow and icy conditions Performance Line: Excellent quality for intensive use Tubeless Technology: For all ambitious sports cyclists, Tubeless is the right choice. Only Tubeless achieves the best values in terms of more speed, grip, puncture protection and comfortBuy Schwalbe Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.