Fancy building up your own bike under the guise of one of our experienced instructors? Here's a sweet Brother Cycles 2019 Big Bro for ya. We'll take the bike apart with you, and then show you how to put it back together, so you can get up close and personal with your bike straight away.
Purchasing this bike through us includes a voucher for a FREE Box BYOB class! (n.b. listed price includes VAT.) To do a class with us, purchase your bike via our website, then email firstname.lastname@example.org to schedule your build date. BYOB classes take place on most weekends, and we can build your bike in one day.
Brother's all purpose, tough as nails, 29er adventure bike – built to take you well off the beaten track and beyond. Whether you’re running a lightweight bikepacking setup, front and rear panniers for a ’round-the-world’ tour or stripped back to thrash some forest trails the Big Bro can handle it.
The frame is made out of tough 4130 double butted cr-mo tubing with a 100mm suspension corrected fork, both with corrosion resistant ED coating applied. It comes equipped with the latest Sram NX Eagle 1×12 groupset – providing reliable shifting in the toughest of conditions. WTB Ranger 2.25″ tyres on WTB ST i25 29″ rims are a trail ready “bikepacker approved” wheelset that excels on longer rides. Last but not least the SRAM Level T hydro disc brakes give you confidence-boosting stopping power all day long.
Like all Brother products the Big Bro has been rigorously tested. We’ve taken prototypes to Snowdonia National Park, up to the Scottish Highlands, bikepacking through the Bavarian Alps and the entire 2,700 mile length of the Tour Divide route.
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
Seat post diameter: 30.9mm
Seat clamp diameter: 33.1mm
Headset: 44mm, SHIS ZS44/28.6 upper, EC44/40 lower
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
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
Crankset: SRAM NX Eagle 30t
Bottom Bracket: SRAM DUB
Rear Derailleur: SRAM NX Eagle 1x12
Cassette: PG-1230 Eagle 11–50t, 12-speed
Chain: SRAM NX Eagle
Headset: FSA Orbit ITA
Brakes/Rotors: SRAM Level T Hydro, front 180mm rear 160mm
Brake Levers: SRAM Level T
Shifters: SRAM NX Eagle
Stem: Promax DA-296 70mm
Handlebar: MJ 133EN 730mm
Saddle: WTB Volt Comp
Seatpost: Promax SP-2016