Shimano M-985 XTR CHAINSET 172.5 42-30
Class-leading XTR 10-speed Dyna-Sys chain-set, integrating the bottom bracket and chain-set 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 Hollow-Tech 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. True double MTB chain-set with 48.8 mm chain-line, ideally suited for XC racing combined with the 11-36T XTR cassette
