11 speed wide ratio. Function: Fluid Drive Plus. Gear Combination: 11-13-15-18-21-24-28-32-36-42-50. Spider material: alloy. Sprockets on spider: 7 sprockets on 2 spider carriers. Sprocket material: hi-tensile steel (1st-9th) and A7075 (10th-11th). Alloy spiders, lockring & spacers. Fits standard Shimano HG spline. 11-50T. Weight - 512g.
Best Price: £86.99 from Merlin Cycles