Ritchey WCS Drop In Integrated Lower Headset Assembly: 1-1/4" IS47/33 CheckoutSpec= Flat Washer Low-profile design fits under clothing

Low-profile design fits under clothing

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

}Shimano XTR RD-M9000 Rear Derailleur Bracket Axle Unit

Forged aluminum alloy arms with an anodized finish for light weight and durability

Ritchey WCS Drop In Integrated Lower Headset Assembly: 1-1/4" IS47/33 CheckoutSpec= Flat Washer Low-profile design fits under clothingRitchey 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