Brother Big Bro Frameset - HazelNutter
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We say...
Just a perfectly designed, simple, steel frame mountain bike, the perfect bikepacker, without sacrificing fun on the trail. We have ridden this bike down alpine downhill black runs, bikepacked in the New Forest, and used everyday as a comfortable offroad cruiser. The Big Bro is a classic.
They say...
Our all-purpose, tough-as-nails 29er / 27.5+ adventure frame, taking riders on two-wheeled adventures around the globe for over a decade now! Whether you’re running a lightweight bikepacking setup, loading up with front and rear panniers for a round-the-world tour, or stripping things back to thrash some forest trails, the Big Bro is ready for it all.
Fresh paint, fresh graphics. We’ve teamed up once again with our good friend and illustrator Matt Blease to create a bold new hand-drawn Brother Cycles ‘Cloud’ logo, bringing a fresh look and a little extra attitude to the Big Bro.
Built around an extra-tough, heat-treated 4130 double-butted chromoly main triangle, the Big Bro comes with a 100mm suspension-corrected steel fork, both with corrosion-resistant ED coating. Boost spacing provides plenty of room for big tyres, with clearance for up to 27.5 x 3″ or 29 x 2.6″, depending on your preferred setup.
Designed with long-distance adventures in mind, the Big Bro features stealth dropper routing, top tube bag mounts, multiple rack and bottle mounts, and triple mounts on and underneath the down tube for extra storage. The fork also features triple mounts for additional bottle cages or Anything Cages, along with dedicated front rack mounts.
The rear triangle features S-bend chainstays and replaceable alloy thru-axle sliding dropouts, allowing for both geared and singlespeed setups. The updated rail-style dropout system provides extra strength and reliability, while a UDH Full Mount-compatible rear mech hanger opens up further drivetrain options.
For those looking to take things even further, we also offer a Rohloff-specific dropout set, making the Big Bro compatible with the Rohloff 135mm Speedhub with OEM axle plate. See here for details.
Like all Brother products, the Big Bro has been rigorously tested in the real world. Since its launch over 10 years ago, we’ve taken prototypes across the South Downs, through Snowdonia and up into the Scottish Highlands. It’s since gone on to tackle some of the world’s toughest bikepacking endurance races, including the 4,418km Tour Divide from Canada to Mexico and the 1,710km Silk Road Mountain Race in Kyrgyzstan.
