Availability & Ordering
We list all framesets currently available from Brother Cycles as “in stock.” While we have a few on hand, most orders will be fulfilled via special order with approximately 14-day delivery.
To confirm ETA or any other questions, get in touch:
shop@bicyclejunction.co.nz | 04 385 2362
Our all-purpose, tough-as-nails 29er/27.5+ adventure frame – designed to take you well off the beaten track and beyond. Whether you’re building up a lightweight bikepacking rig, a fully-loaded world tourer or a stripped-back trail thrasher, the Big Bro 2025 is ready to go wherever your legs and curiosity take you.
The latest edition brings a refined mix of durability and adaptability: a heat-treated 4130 chromoly main triangle for extra strength, new rail-style sliding dropouts for a stiffer rear end, and full SRAM UDH compatibility for modern drivetrains. Add to that a new set of top-tube bag and front rack mounts, and you’ve got a frame that’s evolved with the needs of real-world riders.
Like all Brother bikes, the Big Bro is built on experience, not just engineering. Tested across the South Downs, Snowdonia, and the Scottish Highlands – and proven on ultra-distance epics like the Tour Divide and Silk Road Mountain Race – it’s a platform made to endure, explore and get a little dirty doing it.
Key Features
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4130 heat-treated chromoly steel frame and fork with ED coating for corrosion resistance
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Boost 148 / 110 spacing with clearance for 29 x 2.6” or 27.5 x 3.0” tyres
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Rail-type sliding dropouts for singlespeed or geared setups
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SRAM UDH full-mount compatible rear hanger
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Stealth dropper routing and extensive mounting points for racks, bottles and bags
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100 mm suspension-corrected fork with triple mounts on each leg
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Optional Rohloff dropout plates available for 135 mm Speedhub compatibility
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Real-world tested and ISO 4210 MTB certified
| Frame Size | Small (16) | Medium (18) | Large (20) | xLarge (22) |
|---|---|---|---|---|
| Seat Tube (C-T) | 406mm | 457mm | 508mm | 559mm |
| Top Tube (C-C) | 556mm | 571mm | 595mm | 622mm |
| Top Tube (Effective) | 575mm | 595mm | 620mm | 645mm |
| Head Tube | 95mm | 100mm | 110mm | 125mm |
| Head Angle | 69.5° | 70° | 70.5° | 70.5° |
| Seat Angle | 73° | 73° | 73° | 73° |
| BB Drop | 60mm | 60mm | 60mm | 60mm |
| Min Chainstay | 445mm | 445mm | 445mm | 445mm |
| Fork Length (A-C) | 483mm | 483mm | 483mm | 483mm |
| Fork Rake | 46mm | 46mm | 46mm | 46mm |
| Stack | 598mm | 605mm | 616mm | 630mm |
| Reach | 392mm | 410mm | 432mm | 452mm |
| Standover (mid top tube 29x2.25") | 782mm | 810mm | 840mm | 871mm |
| Wheelbase | 1083mm | 1098mm | 1118mm | 1144mm |
Standard Boxed Bike Shipping
We ship all bikes nationwide across New Zealand. Non electric bikes are packed securely in a box and sent from Bicycle Junction in Wellington.
North Island: $95
South Island: $120
Availability & Ordering
For framesets from Wilde and Brother Cycles, we list available models as “in stock” on our website. While we keep a few on hand, most are fulfilled by special order.
Wilde Framesets
Special order delivery is approximately 10–15 working days.
Brother Cycles Framesets
Special order delivery is approximately 14 days.
To confirm availability, delivery timing, or ask us anything else, get in touch:
shop@bicyclejunction.co.nz | 04 385 2362
Custom Builds
Get Inspired
Feast your eyes on our Custom Build Gallery - every bike spec’d and built in the Bicycle Junction Workshop. From pinstriped cargo bikes for breweries to ground-up world tour machines, we’ve done it all.
Click below for inspiration, and get in touch to start building your own dream bike.