FTOOBD
Sweet spot handling with a classic steel sprung vibe, the On-One 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
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:-
| Rider Height | Suggested Frame Size |
|---|---|
| 5′4″ to 5′7″ | Small |
| 5′7″ to 5′10″ | Medium |
| 5′10″ to 6′1″ | Large |
| 6′1″ to 6′3″ | X-Large |
All frame size recommendations are approximate. A good fit will also depend on the correct choice of stem length, correct bike set-up for the rider and riding style.
Correct frame size choice can vary greatly with riders' torso length. If you have longer legs and a shorter torso, go for a slightly shorter stem. If you think you are borderline between sizes, and you have longer legs and a shorter torso, go for the smaller frame size. If you have shorter legs and a longer torso, go for the larger frame size to get the extra top tube length.
As the frame sizes increase, so does the length of the head tube. If you are inflexible or perhaps have a history of back problems, consider going for a larger frame size. This will increase the relative height of the handlebars making the position less “extreme”. The larger frame will also have a longer top tube, so you’ll need to compensate for this with a shorter stem.
| 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 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 | 2.35" (29) 2.6" (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 |
| Rider Height | Suggested Frame Size |
|---|---|
| 5′4″ to 5′7″ | Small |
| 5′7″ to 5′10″ | Medium |
| 5′10″ to 6′1″ | Large |
| 6′1″ to 6′3″ | X-Large |
All frame size recommendations are approximate. A good fit will also depend on the correct choice of stem length, correct bike set-up for the rider and riding style.
Correct frame size choice can vary greatly with riders' torso length. If you have longer legs and a shorter torso, go for a slightly shorter stem. If you think you are borderline between sizes, and you have longer legs and a shorter torso, go for the smaller frame size. If you have shorter legs and a longer torso, go for the larger frame size to get the extra top tube length.
As the frame sizes increase, so does the length of the head tube. If you are inflexible or perhaps have a history of back problems, consider going for a larger frame size. This will increase the relative height of the handlebars making the position less “extreme”. The larger frame will also have a longer top tube, so you’ll need to compensate for this with a shorter stem.
Build your bike in 3 simple steps
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.