SRAM cassette 9-XG-999
A revolutionary, fully manufactured in CNC procedure mountain bike cassette.
The 7 central pinions are machined in an extremely elaborate process from one piece of steel, what an absolutely light, precisely manufactured and robust cartridge yields.
The large gear is made of aluminum and then joined to the central part of steel.
The cassette transfers power over the broad profile of the smallest and largest sprocket. The wide compared to individual steel pinions bearing surface prevents the pitting of the cassette in the freewheel hub.
Thanks to the open construction, mud and dirt can not accumulate so quickly, which manifests itself in a better switching performance and less wear.
Material: 4130 chromoly steel / 7075-T6 aluminum
Technologies: X-Glide shifting, X-Dome Design
Compatibility: 8- / 9-speed MTB hubs
Weight: 168 g (+ 5.6g end ring)