2019 Brother Cycles Big Bro Frameset LAST ONE

£625.00 £499.00

  • Last One
  • £499
  • Frame, fork, dropouts
  • Large Clay Only
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Last one in stock – large clay. Really nice base for a custom build – we can do full SLX 11 with Hunt wheels for about £1500.

The 2019 Big Bro has been designed with versatility in mind.

The frame is made out of tough 4130 double butted cro-mo tubing and comes with a 100mm suspension corrected fork, both with corrosion resistant ED coating applied. There’s clearance for big 29 x 2.4″ tyres or up to 3 inch tyres if you’d prefer to go 27.5+. It features stealth dropper routing, rack mounts, bottle mounts on the seat tube, down tube and under the down tube for an extra bottle or storage. The forks also feature triple bottle mounts to fit further bottle cages or Anything Cages. S-bend chainstays with replaceable alloy thru axle sliding dropouts allow for geared or singlespeed setups.


Tubing: – 4130 Chromoly steel – double-butted main triangle, ED coated
Brake compatibility; 51mm IS disc brake mount, 180mm max rotor size
Dropouts: 12x142mm thru axle (included)
Seat post diameter: 30.9mm
Seat clamp diameter: 33.1mm (included)
Headset: 44mm, SHIS ZS44/28.6 upper, EC44/40 lower (not included)
Front derailleur clamp diameter: 34.9 mm high direct-mount (adapter available separately)
Bottom bracket shell: 73mm bottom bracket, ISO threaded
Maximum tyre clearance: 29″ x 2.4″, 27.5″ x 3.0″
Fork : 4130 Chromoly tapered unicrown fork, ED coated. 15x100mm thru axle (included)
Full-length cable housing guides for derailleurs and brakes
3 sets bottle cage mounts on all sizes
Chainring clearance: up to 48-36-26t triple, 42-28t double, 38t single
Weight: medium (18″) frame 2.6kg, fork (260mm steerer) 1.25kg
Tested to ISO 4210 MTB standard

Additional information