Ice Spiker Pro 29erMTB tyre with 361 spikes.Lighter, grippier, faster.The “turbo” of spike tyres. With 361 spikes it bites firmly into icy roads. The tungsten carbide core of each spike is clad in weight-saving aluminum. The scales stop at 695 g, yet the MTB tyre remains agile and sporty.Please note that before snow and ice use that these tyres have a bed in time of 40KM at maximum PSI. This will ensure a longer life span and optimum performance.