The introduction of the 12Speed drive into the Deore XT group meant that a new type of freewheel had to be introduced to assemble cassettes with very small sprockets A perfect example would be the codevelopment of the Micro Spline freehub with DT Swiss This enables Shimano to use cassettes with enormous bandwiths and the use of a small 10 tooth pinion The free travel when pedaling is reduced and allows the best possible start on race or trail

NA