SRAM RED cassette XG-1190 11-speed | ETAP This cartridge has a special feature: Nearly all of the sprockets are milled from one piece of steel. These Costly production method produces a unique lightweight cassette reaches the typical peak values for steel pinion in terms of durability. The switching performance is due to the precision milling on absolute top level. The production of a single blank operations moreover, that there is no single pinion that can nick in the freewheel. The support is a large area on the ever smallest and largest sprocket. To damp the operating noise of the chain, Sram installed special polymer rings between the rows of teeth.
Material: tool steel with polymer rings, largest rear sprocket and lockring Aluminum Technology: Switching stages: 11 Gradation: see below Compatibility freewheel body: 11-speed SRAM | Shimano Silver