Schwalbe Ice Spiker Pro HS 379 Lighter, grippier, faster. The turbo among the spike tyres. with 361 spikes, it bites into every ice slope. The spike body around the tungsten carbide claws is made of aluminium. This saves weight. The tyre scale stops at 695g (with 26x2.10 Lite Skin fb.). The MTB remains agile and sprinty.