SHIMANO XTR FC-M9100-2 HOLLOWTECH II crankset for 2x12 drivetrains. FC-M9100 is ideal for Cross Country and Marathon use.
bottom bracket is not included!
Combine wide range and close gear steps
Alloy inner chainring is installed with outer chainring by bolts
Special gear teeth profile designed for MTB riding usage
Crankset can be used as common component
Smoother driving even over bumpy terrain
Lighter and stiffer design & easy exchangeable chainring by direct mount and one key release
Exchangeable of single and double chainring by direct mount
Q-factor: 162 mm
Chainline: 48.8 mm
Weight: 597 g
Chain ring combination: 38-28T
Compatible chain CN-M9100
Crank arms legth: 175 mm
Includes crank fixing bolt
Gear arms 4 arm
Threaded BB Shell Width 68mm, 73mm
Anodized aluminium crank arms
Plated aluminium chainrings
Y1X228000 Chainring 28T-BH for 38-28T
Y1X298010 Chainring 38T-BH for 38-28T
HOLLOWTECH II - Providing the best balance of stiffness, strength, weight and rotating performance The concept of HOLLOWTECH II technology is focused on producing a superior crankset which will maximize a riders power transfer. The rigidity of the crankset ensures pedaling efficiency while its weight, a key element of the crankset, you want light, aids in cycling longer distances over which the rider needs to pedal more. Naturally, SHIMANO strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. HOLLOWTECH technology is an ultra-lightweight hollow crankarm created by SHIMANO with the companys own proprietary forging technology that also maintains rigidity. The addition of HOLLOWTECH II technology integrates the bottom bracket axle with the right crankarm for more stiffness and a weight savings to achieve a high-dimensional balance. Its outboard bottom bracket (sold separately) bearing system provides better weight distribution and more pedaling stability, allowing for more efficient power transfer. The HOLLOWTECH II crankset has been developed by pursuing the optimum balance of stiffness & rotating performance in a lightweight and beautiful crankset design. Moreover, HOLLOWTECH II crankset has a high-precision sealing in the bearing area to increase durability maintaining the excellent rotating performance for long periods.