Sweet spot handling with a classic steel sprung vibe, Big Dog is your 29er trail best friend. Big Dog blends modern 29er geometry with a classic steel ride character to create a smooth rolling, sweetly sprung all rounder with tons of character. Hand welded triple butted steel frame and a big tyre compatible back end guarantee all day comfortable control. Full description and spec
Size guide and geometry
Hand welded triple butted, gusset reinforced steel main tubes with custom tapered, curved and plated back end for a trail smoothing character with bombproof strength. Balanced 29er handling in four sizes. Stable and confident without being crazy stretched and slack. You want Hello Dave for that.. Threaded BB shell, big clearance chain stay plate Boost bolt through axle and replaceable gear hanger for crash/transport survival.
External cable routing for the smooth, simple operation. Stealth dropper post routing and rear rack mounts for enduro or exploro. Lacquered raw finish for naked build detail appreciation (with eventual cosmetic rat bike rust) or genuinely dayglo paint for ultimate pop.Custom upgrades let you build your ultimate trail best friend for a crazy low cost.
Notes:-
| Frame Material | 4130 DB |
| Frame Weight, Approx, (med) (g) | 2.7kg (Medium) |
| Fork | 120-130mm |
| Fork Weight, Approx (g) | TBC |
| FR Axle (mm) | TBC |
| RR Axle (mm) | 148 BOOST |
| Seatpost Size (mm) | 31.6 |
| Seat Clamp Size (mm) | 34.9 |
| Front Mech Type | NA |
| Wheels | 29" or 650B |
| Max Tyre | 2.6" (29) 2.8" (650b) |
| Mudguard mounts | NA |
| Rack Mounts | REAR |
| Bottle Cage Bosses | 1 |
| Brake Type | Chainstay Mount |
| Bottom Bracket | 73mm BSA |
| Headset Type | 44mm |
| Fork Length (mm) | TBD |
| Cable Routing | EXT |
| Dropper Compatible Max Chainring Max Rear Rotor | Yes, Stealth 32t 160mm |
Why are prices so low?
We sell direct to the customer. With Planet X you get unrivalled value for money as we cut out the middleman. By designing and building everything ourselves, we provide excellent service, and make sure you get exactly what you pay for. This means we deliver first-class bikes, components, and accessories at the best prices in our industry.
How it works
You order your bike your way. Simply select the frame size and colour you want and choose from the range of customisation options with components to fit your needs. Your bike will be passed to one of our expert mechanics to build your bike exactly the way you want it.
Buying online in confidence
For advice on sizing and specifications, contact us via Live Chat and one of our in-house experts will be happy to assist with perfecting your bike. More information on building a bike is available on our dedicated bikes built to order page
Buy in confidence
Built in the UK
2 year warranty
Custom built to your specifications
We design and assemble every bike we sell right here in Yorkshire. Working with the leading component vendors and fabrication facilities, we create bikes with unrivalled performance and provide exceptional value for money.
Chat with one of our experts today and we will help put together the custom bike of your dreams.
| SMALL | MED | LRG | XLG | ||
| A | Head Angle (degrees) | 65.0 | 65.0 | 65.0 | 65.0 |
| B | Head Tube (mm) | 100 | 110 | 120 | 135 |
| C | Top Tube Effective(mm) | 580 | 615 | 630 | 655 |
| D | Seat Tube Angle (degrees) | 75 | 75 | 75 | 75 |
| E | Seat Tube C-T Actual (mm) | 380 | 420 | 460 | 500 |
| F | Chainstays (mm) | 444 | 444 | 444 | 444 |
| G | BB Drop (mm) | 58 | 58 | 58 | 58 |
| I | Stack (mm) | 609 | 619 | 628 | 641 |
| J | Reach (mm) | 415 | 446 | 460 | 480 |
| K | Front Centre (mm) | 725 | 762 | 779 | 807 |
| M | Fork Offset (mm) | 51 | 51 | 51 | 51 |
| O | Wheelbase (mm) | 1169 | 1206 | 1223 | 1251 |
| P | Standover (mm) | X | X | X | X |
| Frame View size guide | |||
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ED Black No Decal Large |
£249.99
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Customise |
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ED Black No Decal Medium |
£249.99
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Customise |
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ED Black No Decal Small |
£249.99
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Customise |
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ED Black No Decal X-Large |
£249.99
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Customise |
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Gloss Orange Large |
£249.99
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Customise |
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Gloss Orange Small |
£249.99
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Customise |
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Gloss Orange X-Large |
£249.99
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Customise |
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Raw Phosphate Small |
£249.99
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Customise |
Bought mine intending to blast it around Bikepark Wales on 27.5 wheels and heavy 2.6" tyres with 150mm forks, as I fancy something longer and slacker than my Stanton and have little respect for manufacturer recommendations / limitations! Unboxing it was sweet, the Raw finish is delightfully industrial with white deals (not shown in the pics). It does weigh more than advertised at 6.33lbs or 2.87Kg for my medium size, so it should be well up to the job! The spec says it will take a 160mm rear rotor with 180 TBC, I can tell you a 203mm disc and 4-pot XT calipers breeze in no problem at all! The brake and hose guides could be smaller and neater but they suit the nature of the beast and get the job done. I won't add my riding impressions because I'm not using it in the indended 29er setup and don't want to put anyone off with my silly ways.