Shimano 105 RD-R7100 Rear Derailleur - 12-Speed Direct Mount One Spec Shadow Design 36t Max Low MFPN=GSZ03 The CNC-machined aluminum construction with

The CNC-machined aluminum construction with cooling fins guarantees durability and efficient heat dissipation

1 Tubeless Folding Black Durable Fast Compound

13mm thick square temper hardened parabolic steel shackle

Fits 72 - 75mm

U-shape cradle clamp eliminates handlebar stress raisers found with traditional stems

Shimano 105 RD-R7100 Rear Derailleur - 12-Speed Direct Mount One Spec Shadow Design 36t Max Low MFPN=GSZ03 The CNC-machined aluminum construction withThe Shimano 105 12 speed rear derailleur combines the smooth and stable shifting that is a staple of Shimano Shadow RD design with direct mount compatibility and a wider gear range capacity. Shadow RD offers a low profile design with single tension construction that prevents the derailleur from hitting the chainstay in rough riding conditions Direct Mount feature is design for large contempory frames with large section chainstays in particular