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  • Take a look at our offer

Brother Cycles Big Bro Rohloff Edition

incl. VAT, plus delivery
Delivery weight: 25 kg

Description

Rohloff Speedhub 14-speed: an extremely durable, low-maintenance hub gear system offering precise performance – ideal for bikepacking, round-the-world trips and demanding off-road tours.
SON hub dynamo (15×110 Boost): a reliable, efficient power supply for lights and electronics without a battery; the highest build quality and the perfect choice for long tours.


Colour and size: black S (2026)


New colours for 2027

  • Light blue
  • Khaki brown

The photo is for illustrative purposes only; as soon as we receive up-to-date images of the new colours, we’ll post them online straight away.

The branding has been updated, but the technical specifications remain unchanged – proven quality, maximum load-bearing capacity and the typical Brother Cycles durability. 👍


PRE-ORDER: Delivery November–December 2026



Specifications: Subject to change

🚲Frame set

• Tubing: 4130 heat-treated chromoly steel, double-butted, ED-coated

• Brake mount: 51 mm IS disc mount, max. rotor size: 180 mm

• Dropouts: Boost 12 × 148 mm thru-axle (included)

• Derailleur hanger: SRAM UDH type, fully replaceable

• Fork: Tapered chromoly

• Headset: Cane Creek, tapered

🛠Components

• Brakes: Shimano Deore 6120, 4-piston, hydraulic (front & rear)

• Brake levers: Shimano Deore

• Brake discs: 180 mm front / 160 mm rear

• Crankset: 175 mm, 40–42 teeth

• Bottom bracket: SRAM DUB Eagle, 68–73 mm, Boost-compatible

• Gear system: Rohloff 14-speed hub with Thorn accessory handlebar (T-extension 55 mm, Ø 22.2 mm)

• Stem: Procraft, 31.8 mm, length 60–120 mm (optional)

• Handlebars: Pro Koryak Flatbar or Surly Moloko

• Saddle: WTB Volt or alternative option

• Seatpost: Ergotec, 30.0 × 400 mm or alternative option

🛞Wheels & tyres

• Front wheel: RYDE 27.5 × 30 with SON hub dynamo (or 29")

• Rear wheel: RYDE 27.5 × 30 with Rohloff Speedhub (or 29")

• Tyres: Schwalbe Marathon Mondial, either 27.5 × 2.25

• Inner tube: to match tyre size or tubeless-compatible

🔗Drivetrain & Accessories

• Chain: KMC e1

• Recommended combination: Rohloff 16-tooth sprocket + 42-tooth crankset (e.g. FSA 175 mm) – ideal for the Big Bro or Surly Ogre with a smaller front wheel


Brother Cycles Big Bro ‘A la Carte’ – Rohloff Edition

Rohloff & SON hub dynamo – the ideal choice for long tours and bikepacking adventures Rohloff Speedhub 14-speed – maximum reliability for any route

The Rohloff Speedhub 14-speed is regarded worldwide as the benchmark for durable hub gears.
It offers precise gear-changing performance, exceptional durability and operates reliably under heavy loads, in bad weather and on long expeditions.
Thanks to its minimal maintenance requirements, the Rohloff hub is ideal for bikepacking, round-the-world trips, off-road adventures and demanding long-distance rides.
A perfect upgrade for any adventure bike or touring bike that demands uncompromising quality.

SON hub dynamo (15×110 Boost) – reliable power without a battery

The SON hub dynamo delivers a constant, efficient supply of electricity for lights and electronic devices – completely battery-free.
It is renowned for its exceptional service life, smooth running and the highest build quality in the field of dynamo hubs.
Ideal for long tours, daily commutes, bikepacking and any situation where you need to rely on a dependable lighting system.
The Boost version (15×110) offers additional stiffness and is perfect for modern 29er adventure bikes and expedition bikes.