CBOOBDSX
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 with 130mm of fork travel and a big tyre compatible back end, guaranteed all day comfortable control. Dropper post routing and rack fixtures make the Big Dog your top value backcountry epic or bike to work best friend.
Free Selcof Dropper Post Upgrade - Ends 31/01
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.
Rockshox Judy Silver TK 29" Boost Fork for uncompromised control at an affordable price. 130mm of super smooth travel for attacking the trail without unbalancing the handling. Full size legs for accurate handling and smooth stroke however hard you ride. Adjustable DebonAir spring and Motion Control damping are easy to adjust for every ride and rider.
SX Eagle is SRAMs' entry level Eagle groupset. Positive, 12 speed sequential shifting up to a 50 tooth wall climbing winch. Clutch rear mech and X-Sync2 tech for quiet chain security however rowdy you get. Ultra durable steel chainring with DUB axle to power up climbs and laugh off big landings. SRAM Level hydraulic disc brakes for effective, lightweight all weather control.
29er wheels roll smoother and faster however rough it gets. Tough, wide, tubeless ready WTB rims provide utmost durability at a reasonable weight. Proven on the toughest tracks of the Enduro World Series, depended on for daily trail rides, and trusted whilst bikepacking in remote regions of the world, the WTB I30 rims are a great fit for every usage and style of riding. Quality sealed bearing Boost axle disc hubs. Panaracer FireSport 29 x 2.35in tyres are a classic all rounder tread for UK riding.
Pedal choice is a personal thing. Some people prefer to ride with clipless pedals matched to cleats on the underside of your cycling shoes, others may prefer a flat pedal paired with shoes with a tread designed to provide grip without the aid of cleats. At Planet X our bikes dont come with pedals included but we do sell a wide range of clipless and flat pedals for all types of cyclists, see the following link for our range - Pedals
NOTE: Please make sure you check the size guide to order the correct size of this frame.
Please Note: - Bike Specifications can and do change from time to time from the specification pictured above. Please check the Full bike specification cartefully before ordering
Upgrade prices - All of our customise and upgrade options are priced as upgrades. For example if you upgrade your Tyres or Handlebars we will swap them over for you. As the Upgrades are discounted we do not send out the original item as well as the upgrades
| 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) | 70.0 | 70.0 | 70.0 | 70.0 |
| B | Head Tube (mm) | 105 | 125 | 145 | 160 |
| C | Top Tube Effective(mm) | 579 | 604 | 630 | 654 |
| D | Seat Tube Angle (degrees) | 7405 | 7405 | 7405 | 7405 |
| E | Seat Tube C-T Actual (mm) | 380 | 431 | 483 | 510 |
| F | Chainstays (mm) | 450 | 450 | 450 | 450 |
| G | BB Drop (mm) | 65 | 65 | 65 | 65 |
| I | Stack (mm) | 573 | 591 | 610 | 624 |
| J | Reach (mm) | 420 | 440 | 460 | 480 |
| K | Front Centre (mm) | 657 | 684 | 711 | 734 |
| M | Fork Rake (mm) | 55 | 55 | 55 | 55 |
| O | Wheelbase (mm) | 1107 | 1134 | 1161 | 1184 |
| P | Standover (mm) | TBC | TBC | TBC | TBC |
Custom options available on components showing this spanner
| Brake Setup | UK Brake Lever Setup Rear Brake Left | ||
| Fork | Rockshox Judy Silver TK 29" Boost Fork / 130mm / 15x110mm / Gloss Black / Crown Adjust | ||
| Grips | On-One Knurl EVO Grip / Black | ||
| Handlebar | Selcof Enduro6 Riser Handlebar / 780mm | ||
| Saddle | San Marco Monza Start Wide Saddle / Black / Carbon Steel | ||
| Seat Clamp | On-One Forged Alloy Bolt Up Seatclamp V2 / 34.9mm / 13mm / Black | ||
| Seatpost | Selcof Dropper Post / 150mm / 31.6mm | ||
| Stem | Selcof Hot Box Stem / 50mm | ||
| Tyres | Panaracer FireSport 29" Wire Bead Tyre / 2.35" | ||
| Brake | SRAM Level Hydraulic Disc Brake / Rear / 1600mm / 20 Post to IS | ||
| Brake | SRAM Level Hydraulic Disc Brake / Front / 900mm / Post Mount 20mm Spacers | ||
| Chain | SRAM SX Eagle 12 Speed Chain / 126 Link | ||
| Gear Levers | SRAM SX Eagle Trigger Shifter / 12 Speed Right | ||
| Crank Set | SRAM SX Eagle DUB Crankset / 170mm / 32 Tooth / BOOST | ||
| Cassette | SRAM PG-1210 Eagle 12 Speed Cassette / 11-50 | ||
| Rear Mech | SRAM SX Eagle AL Rear Mech / 12 Speed | ||
| Wheel Pair | Alex EXR30 29er on Formula Boost 6 Bolt Wheelset / Shimano 11 Speed |
| Frame Material | 4130 |
| Frame Weight, Approx, (med) (g) | 2.71kg (Medium) |
| Fork | 440mm AC, 55mm Rake |
| Fork Weight, Approx (g) | N/A |
| FR Axle (mm) | 15mm |
| RR Axle (mm) | Boost 178 x 12mm, thread 14mm x 1.5 |
| Seatpost Size (mm) | 31.6 |
| Seat Clamp Size (mm) | 34.9 |
| Front Mech Type | N/A |
| Wheels | 29er |
| Max Tyre | 62mm / 2.4" |
| Mudguard mounts | Rear Only |
| Rack Mounts | RR |
| Bottle Cage Bosses | 3 |
| Brake Type | Disc - Post Mount |
| Bottom Bracket | BSA 73mm Shell |
| Headset Type | 44m |
| Fork Length (mm) | 530 |
| Cable Routing | INT |
| Dropper Compatible | Stealth |
| 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.
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