Ritchey WCS Drop In Integrated Lower Headset Assembly: 1-1/4" IS47/33 CheckoutSpec= Flat Washer }Shimano XTR RD-M9000 Rear Derailleur

}Shimano XTR RD-M9000 Rear Derailleur Bracket Axle Unit

Optimized chain for HG sprocket which provides a fast and precise rear shifting performance (especially during downshifts)

0mm 260mm Straight Pull Black Box of 20

Aluminum body Chromoly spindle and Cast Steel wings

Narrow Wide Direct Mount CINCH Hyperglide+ ChainringOnly compatible with Hyperglide + chains

Ritchey WCS Drop In Integrated Lower Headset Assembly: 1-1/4" IS47/33 CheckoutSpec= Flat Washer }Shimano XTR RD-M9000 Rear DerailleurRitchey WCS Drop In Integrated Lower Headset Assembly: 1 1 4" IS47 33. Drop in lower assmbly with crown race. 45 45 degree angular contact bearing Titanium coated for corrosion resistance TECH SPECS Bearing Type Cartridge Color Black Crown Race 33 S. H. I. S Lower IS47