Rohloff Speedhub 500/14 TS OEM2 Bolt-On Disc 36h Red MFPN=21104 } The name says it

} The name says it all

hub model 1/1 road disc description XDR complete freehub material aluminum

so the brake can be precisely centered on the wheel and adjusted for return strength

Lower leg bypass channels for silky-smooth fork action

Disc Center Lock Rim Drilling F: 24 R: 24 Axle Type F: 12mm R: 12mm Spoke Type CX-Ray Straight Pull Rim Internal Width 21

Rohloff Speedhub 500/14 TS OEM2 Bolt-On Disc 36h Red MFPN=21104 } The name says it14 speed internal rear hub drivetrain system shifts under load Disc compatible: requires Rohloff specific 4 bolt rotor (sold separately) Reliable, low maintenance internal design for reduced wear Highly efficient with no gear overlap and maximum ratio range Shift indexing originates at the hub, instead of the shifter Hubs are to be laced 1x or 2x cross only. 3x can cause premature hub flange failure and therefore will not be covered under warranty