SHIMANO FC-M985 10-SPEED XTR CHAINSET HOLLOWTECH II 40/28 TEETH 175MM

Class-leading XTR 10-speed Dyna-Sys chainset, integrating the bottom bracket and chainset into a strong, rigid, yet lightweight unit
Integrated design makes installation and adjustments easier than ever
Precision bottom bracket bearings are spaced further apart, and are therefore more stable and longer lasting than conventional bottom brackets
Super-lightweight HollowTech II forged Duralumin crank arms - hollow design saves weight whilst increasing rigidity
Easy to use splined bottom bracket spindle connection provides a rigid and secure interface between crank and spindle
38-26T double set up ideally suited for all-mountain use in conjunction with 11-36T cassettes
Development has resulted in stiffer, light weight and hard-wearing HG-X 7075 aluminium outer and inner chainrings with a highly durable Nickel-plate treatment
HG-X chainring with patented spike pins give smooth and fast gear shifts under load
104 / 64 PCD four-arm chainrings
For use with 10-speed HG-X MTB chains only
Average weight 755 g (175 mm including BB)