BROTHER BIG BRO

Brother Big Bro

Tough as nails adventure & trail taming MTB

The classy Big Bro is Brother Cycles’ 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 bike-packing 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 all.  The high quality steel frame and choice of full steel bike-packing fork or carbon trail fork, together with clearance for big volume tyres, deliver a ride quality that is simply outstanding and totally fuss free.

“every time I rode it, I returned feeling delighted by its handling and how much fun I’d had… Excuse the poetic license, but it’s a mountain bike that’s crying out to be ridden along grassy drover’s tracks in Mid Wales, or the historic, stony byways of England’s Lake District. It’s a Rough-Stuff Fellowship tourer, with a plus-sized twist. There are no airs or pretenses; aside, that is, from that lovely, eye-catching finish. It’s just a blast to ride.” Bikepacking.com

Like all Brother products the Big Bro has been rigorously tested out in the real world – prototypes were taken across the South Downs, through Snowdonia National Park and up to the Scottish Highlands. The Big Bro has since completed two of the worlds toughest bike-packing endurance races – the 4,418km Tour Divide from Canada to Mexico and the 1,710km Silk Road Mountain Race in Kyrgyzstan.

The new colour for 2021: Forest Green

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 inside and out. There’s clearance for big 29 x 2.6″ tyres or up to 3 inch tyres if you’d prefer to go 27.5+.

“I quickly fell in love with this bike.  It is refreshingly simple in design, stunning to look at and beautifully made.  It just seemed to call out ‘ride me’ every time I looked at it” Singletrack Magazine

The Big Bro 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 (as seen below in one of our staff bikes).

The new Brother Carbon MTB fork has been developed as an upgrade for the Big Bro adventure frameset when luggage mounts aren’t a top priority – the full carbon fork is considerably lighter than a steel fork giving the bike’s front end a nimble and responsive feel – perfect for long distance gravel rides, trail riding and endurance events.

For 2021 the Brother Bog Bro comes in the Forest Green colour below – please note that we have now sold out of the black shown above.

Tubing: – 4130 Chromoly steel – double-butted main triangle, ED coated
Brake compatibility; 51mm IS disc brake mount, 180mm max rotor size
Dropouts: 12x148mm 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 2.6″, 27.5″ x 3.0″ (note: not all drivetrains allow for these maximum tyre clearances)
Fork : 4130 Chromoly tapered unicrown fork, ED coated. 15x110mm 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 2.60kg, fork (300mm steerer) 1.37kg
Tested to ISO 4210 MTB standard

Axle-to-crown:  482mm
Offset:  46mm
Steerer:  300mm, tapered 1 1/8 – 1 1/2″
Tyre Clearance:  29 x 2.35″ or 27.5 x 2.5″
Hub Spacing:  100mm
Post mount:  minimum 160mm rotor
Weight (uncut):  560g

BROTHER BIG BRO

We are currently offering the Brother Big Bro in the following standard Epic specifications. Stock shortages mean that we can’t offer a bare frameset as an option until further notice.

Brother Big Bro Deore 11s – from £1,639

Specification

FRAME: Brother Big Bro 4130 Chromoly steel frame – double-butted main triangle, ED coated. 12x148mm thru axle
FORK: Brother Big Bro 4130 Chromoly tapered unicrown fork, ED coated. 15x110mm thru axle
HEADSET: M:Part
BOTTOM BRACKET: Shimano BB52
SHIFTER: Shimano M5100 Deore 11-speed
BRAKE LEVERS: Shimano M6100 Deore
FRONT BRAKE: Shimano M6100 Deore Hydraulic Disc, RT64 160mm rotors
REAR BRAKE: Shimano M6100 Deore Hydraulic Disc, RT64 160mm rotors
FRONT DERAILLEUR: n/a
REAR DERAILLEUR: Shimano M5100 Deore 11-speed, Shadow+, SGS long cage
CRANKSET: Shimano M5100 Deore 11-speed, 32T
CASSETTE: Shimano M5100 Deore 11-speed cassette, 11-51T
HANDLEBAR: PRO LT Riser
GRIPS: ODI Attack
STEM: PRO LT
SEATPOST: PRO LT
SADDLE: WTB Steel
WHEELS: Shimano MT600 Boost 29er (add £15 for Mavic Crossmax Boost)
TYRES: Continental Mountain King Shieldwall 29″x2.3″
PEDALS: Not Included

COLOUR:  Forest Green

Brother Big Bro Deore 12s – from £1,819

Specification

FRAME: Brother Big Bro 4130 Chromoly steel frame – double-butted main triangle, ED coated. 12x148mm thru axle
FORK: Brother Big Bro 4130 Chromoly tapered unicrown fork, ED coated. 15x110mm thru axle
HEADSET: M:Part
BOTTOM BRACKET: Shimano BB52
SHIFT/BRAKE LEVERS: Shimano M6100 Deore 12-speed
FRONT BRAKE: Shimano M6100 Deore Hydraulic Disc, RT64 160mm rotors
REAR BRAKE: Shimano M6100 Deore Hydraulic Disc, RT64 160mm rotors
FRONT DERAILLEUR: n/a
REAR DERAILLEUR: Shimano M6100 Deore 12-speed, Shadow+, SGS long cage
CRANKSET: Shimano M6100 Deore 12-speed, 32T
CASSETTE: Shimano M6100 Deore 12-speed cassette, 10-51T
HANDLEBAR: PRO LT Riser
GRIPS: ODI Attack
STEM: PRO LT
SEATPOST: PRO LT
SADDLE: WTB Steel
WHEELS: DT Swiss M 1900 27.5″ 30mm Boost Microspline (add £40 for Mavic Crossmax XL Boost)
TYRES: Continental Cross King Shieldwall 27.5″x2.80″
PEDALS: Not Included

COLOUR:  Forest Green

EPIC CYCLES

ESCAPE – EXPLORE – ADVENTURE