Jagwire 4mm Basics Derailleur Housing 50M File Box, Black specialorder | Mountain Biking | Park Tool | Torque Wrench It gives up the carbon

It gives up the carbon stiffness of the F1 LT

and a Red (fine) DMT Diamond File are also included

weighing 21 pounds in this Team XTR spec

which puts it at the right spot in the Hyperglide+ ecosystem for SLX M7100 mountain builds and 105 R7100 road groupsets without crossing into XT or Dura-Ace pricing

Jagwire 4mm Basics Derailleur Housing 50M File Box, Black specialorder | Mountain Biking | Park Tool | Torque Wrench It gives up the carbonThe Jagwire 4mm Basics Derailleur Housing is shift housing for shop mechanics and home builders stocking up on shifter cable runs. The SIS style linear strand construction pairs steel strands with a plastic outer cover, holding stiffness for accurate shifting while staying bendable through tight routing. This is a bulk 50 meter file box in black, 4mm outer diameter, that stacks on the shelf for easy shop storage. End caps and ferrules are not included