The Big Bro is our tough-as-nails 29er/27.5+ adventure frameset. New for 2025: heat treated 4130 chromoly main triangle, new rail-system sliding dropouts, UDH full mount compatible hanger, top tube bag mounts and additional front rack mounts. Rohloff compatible with optional dropout set.
Frame tubing: Heat treated 4130 chromoly steel double-butted, ED coatedFork: 4130 chromoly tapered unicrown, 100mm suspension corrected, 15x110mm Boost TA included
Brake compatibility: 51mm IS disc mount, 180mm max rotor
Dropouts: Boost 12x148mm sliding TA, geared or singlespeed
Gear hanger: SRAM UDH type, full mount compatible
Seat post diameter: 30.9mm
BB shell: 73mm ISO threaded
Max tyre clearance: 29" x 2.6" / 27.5" x 3.0"
Stealth dropper routing, triple cage mounts on fork blades
Frame weight (medium): 2.60kg | Fork weight: 1.37kg
Tested to ISO 4210 MTB standard