CBOOBDGX
A great handling bike with a compliant steel frame, The Big Dog provides an intuitive ride for any trail. Equipped with 29er wheels and a 130mm fork, itll handle the rough while offering a lively character on smoother trails too. With plenty of clearance for wide tyres also, the Big Dog will be your perfect companion for any type of ride, whatever the terrain or conditions.
Using a 4130 frame and balanced geometry, Big Dog is our capable all-rounder ready to tackle any trail you fancy. Steel has always been the most compliant material to build frames with, keeping you fresh on the roughest of rides. Big wheels shod with 2.35 tyres maintain traction but also offer faster rolling speeds than smaller wheels. To put it simply, if your rides span from fast loops of your local singletrack to all-day epics, the Big Dog will fit the bill perfectly.
Out front is a Rockshox 35 Gold fork, providing 130mm of travel to take the sting out of rough terrain while not sapping your energy when pedalling out of the saddle. Using tuneable air spring and compression and rebound adjustments, you can personalise your suspension to your weight and riding style.
SRAM 12 speed GX Eagle groupset offers a huge range of gears for getting you up any gradient. A clutch derailleur and narrow wide chainring mean the chain will be noise free in rougher terrain. This great drivetrain has been paired with SRAM's Guide G2 R brakeset, top-flight 4 piston stopping power combined with great lever ergonomics.
WTB I30 29er Wheels provide fast rolling confidence. Tubeless compatible, the 30mm internal width gives you a wider tyre profile, offering more grip and control. Selcof finishing kit is used throughout the bike, including the wide and stable Enduro6 bars and a short 50mm stem for responsive yet controlled steering.
Upgrade to a Selcof Watchtower Dropper Post
Perfect for riding technical off-road terrain, giving you space for maximum manoeuvrability on the bike and better pedalling efficiency. A dropper post is an essential mountain bike accessory and with the SELCOF WATCHTOWER cable actuated dropper post youll be attacking every climb with ease and conquering every descent confidently.
| A | Travel | 125mm | 150mm |
| B | Seat Collar to Centre of Rails | 180mm | 210mm |
| C | Total Length | 396mm | 457mm |
| D | Min. Insertion Length | 100mm | 100mm |
| E | Max. Insertion Length (inc actuator) | 210mm | 246mm |
| * | 30.9 Weight | 565g | 665g |
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 carefully 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) | 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 |
Custom options available on components showing this spanner
| Brake Setup | UK Brake Lever Setup Rear Brake Left | ||
| Fork | RockShox 35 Gold RL DebonAir 29" BOOST Fork / 130mm / 15x110mm / Gloss Black / Crown Adjust | ||
| Grips | On-One Knurl Grip / Black | ||
| Handlebar | Selcof Enduro6 Riser Handlebar / 780mm | ||
| Saddle | San Marco Monza Start Wide Saddle / Black / Carbon Steel | ||
| Seat Clamp | Selcof Forged Alloy Bolt Up Seatclamp V3 / 35mm / 12mm / Black | ||
| Seatpost | Selcof Twelfty Alloy Inline Seatpost / 31.6mm | ||
| Stem | Selcof Hot Box Stem / 50mm | ||
| Tyres | Panaracer FireSport 29" Wire Bead Tyre / 2.35" | ||
| Chain | SRAM SX Eagle 12 Speed Chain / 126 Link | ||
| Gear Levers | SRAM GX Eagle Trigger Shifter (Lunar Colourway) / 12 Speed / Right Hand | ||
| Crank Set | SRAM GX Eagle DUB Crankset (Lunar Colourway) / 170mm / 32T / BOOST | ||
| Cassette | SRAM PG-1210 Eagle 12 Speed Cassette / 11-50 | ||
| Brake | SRAM Guide G2 R Hydraulic Disc Brake / Rear / 1800 / 20 Post to IS | ||
| Brake | SRAM Guide G2 R Hydraulic Disc Brake / Front / 900mm / Post mount (20mm bracket) 20P | ||
| Rear Mech | SRAM GX Eagle Rear Mech (Lunar Colourway) / 1 x 12 Speed | ||
| Wheel Pair | WTB I30 29er On Formula Boost 6 Bolt Wheelset / Shimano 11 Speed |
| 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.
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