ABSOLUTE BLACK Chainring Direct Mount oval | narrow wide for Shimano XTR FC-M9100 | FC-M9120 crank | Gray
The matching oval Direct-Mount chainrings for the Shimano XTR 9100 and 9120 cranks . Absolute Black chainrings are CNC machined from one piece of aluminum and then anodized, resulting in an extremely stiff and durable chainring. The chainrings have special teeth that prevent the chain from jumping off prematurely. The principle follows that of the SRAM chainrings with X-Sync teeth. With an offset of 51 millimeters, the chainrings are suitable for both 142 millimeters standard and 148 millimeters BOOST rear hub.
The ovalization of the chainrings increases performance through driveline variation and drag optimization. When pedaling with the legs, the natural strengths and weaknesses are reconciled. Thus, a better use of the stronger muscle groups is achieved and in the weaker muscles a balance in the working path (lower stroke) created.
NOTES: The sprocket teeth are specially designed for Shimano 12-speed drivetrains and only work with Shimano 12-speed chains.
intended use : MTB
Material: aluminum 7075 Txxx
Technology: Narrow Wide
Attachment: Direct Mount
Number of teeth: 28, 30, 32, 34 or 36 teeth
Compatibility cranks : Shimano XTR FC-M9100 | 9120, XT FC-M8100, SLX FC-M7100
Compatibility chain: 12-speed Shimano CN-M9100, CN-M8100, CN-M7100
chain line : 51 mm
Offset: for 148 mm BOOST and 142 mm standard hubs
Ovalization: 10.2 - 14.4%, maximum diameter at 110.5 - 116.3 ° crank position after top dead center (optimized for each chainring size)
Weight according to manufacturer: n / a
Weight weighed: 51.5g (28 teeth)
Delivery: 1x ABSOLUTE BLACK chainring Direct Mount oval | narrow wide for Shimano XTR FC-M9100 | FC-M9120 crank | Gray