Brother Swift

Brother Swift Track Frame

The infamous Swift track frame is back – featuring double oversize tig welded tubing and an aggressive track geometry. Updates for the 2018 version include a 44mm headtube and tapered carbon forks. All this creates a fast and responsive ride making the Swift an effective race frame for the street, track or crit. Brother first released the Swift back in 2013. In this time it’s developed into one of the go-to steel fixed gear/track frames that’s been tried and tested in crit races, alleycats and on the track all around the world.


Tubing: Double oversize butted cr-mo tubing
Forks: 3k carbon/alloy fork
Dropouts: Stainless 'Brother' dropouts
120mm rear spacing
Brake compatibility: Short drop brake caliper
Headset: 44mm, SHIS ZS44/28.6 upper, EC44/40 lower (not included)
Bottom bracket shell: 68mm bottom bracket - ISO threaded
Seat post diameter: 27.2mm
Seat clamp diameter: 30mm (included)
Maximum tyre clearance: 28c
Frame weight: 54cm = 2.0kg
Fork weight: Uncut = 625g
Tested to ISO 4210 standard

Size (C-TT)52cm54cm56cm58cm60cm
Seat Tube (C-C)505mm525mm545mm565mm585mm
Top Tube530mm545mm555mm565mm580mm
Head Tube107mm125mm144mm164mm182mm
Head Angle747474.574.574.5
Seat Angle7574.574.574.574
BB Drop58mm58mm58mm58mm58mm
Fork Length (A-C)370mm370mm370mm370mm370mm
Fork Rake35mm35mm35mm35mm35mm