Shimano XTR Di2 M9250 Drivetrain Upgrade Kit - 12 sp Fender and 40mm) mean there's a

and 40mm) mean there's a setup for every rider and every geometry

Shimano mixes lightweight aluminum on the spider and larger cogs with hardwearing steel on the smaller ones

TriTec triple compound: firm base for support

Material : Steel

1/2 ID shock-eye and 26

Shimano XTR Di2 M9250 Drivetrain Upgrade Kit - 12 sp Fender and 40mm) mean there's aShimano XTR Di2 M9250 brings fully wireless, lightning fast 12 speed electronic shifting with race hardened durability to riders who refuse to compromise on performance. The XTR Di2 M9250 Drivetrain Upgrade Kit is Shimano's crown jewel, and it shows. At the heart of the kit sits the RD M9250 rear derailleur, built around the new SHADOW ES low profile wedge design that tucks tight to the bike, glances off rock strikes rather than eating them, and gains