Set Currency:
Your Basket - 0 Items - £0.00 Checkout
CBOOBDSX
On-One Big Dog SX On-One Big Dog SX
Pre-Order Now
Bikes showing as in stock we aim to build on Tuesday 19th of November.
Don't forget to choose your custom options, and look at the amazing deals on wheels too!

Pre-ordered bikes will take a little longer, but we'll keep you in the loop
From £999.99
Pre-Order Now

Heavy, out of date, non aero, "gas pipe" steel - these are definitely not the state of the art masterful pieces of modern design so beloved of the modern cycling industry. But we love them and we think you will too. Get 20% (£200) off at Checkout with code HOTDOG

  • Double Butted 4130
  • SRAM SX Eagle 1x12 Groupset
  • 29er wheelset

    Preorder Offer: This bike will be built and shipped in late November
Full Description

Description

It is just some steel tubes welded together to make a bike that will be heavy, unresponsive, and really just pretty pointless and insignificant compared the great bikes you can buy from our competitors.

Vaguely up to date with 29in wheels and BOOST spacing, THRU axles, 1x drive train and Stealth Dropper routing. Rack mounts too because we forgot to take them off in the final revision, but you can pretend youre going to go touring on it eh? Designed for 130mm suspension forks, or long rigid only fork if you want.

Groupset: SRAM SX Eagle 1x12. SRAM's entry level Eagle groupset packs in 12 gears, a huge gear ratio and the best chain retention and gear shifting that you simply won't believe how good these new groupsets have gotten.

Wheelset: BOOST spaced wheelset, built for some fun, rough and tumble and mile after mile longevity. 29ers roll a little faster, offer more stability and gobble up the trails

Made by a company living in the past and a design team not good enough to make suspension bikes let alone e-bikes. Lead by two blokes who think the bikes they remember from 30 year ago have any interest to modern day bike community are just plain deluded.

They cannot even be bothered to take proper photographs. They'll probably go rusty too. Infact they definitely will. Avoid - Do not buy one.

Full Spec

Custom options available
On components showing this spanner
Brake Setup UK Brake Lever Setup Rear Brake Left
Grips On-One Half Bob Lock-On Foam Grips / Black
Handlebar On-One Enduro6 Riser Handlebar / 780mm / 31.8mm / Black
Saddle San Marco Monza Start Saddle / Black / Carbon Steel
Seatpost On-One Twelfty V2 6061 Alloy Seatpost / 31.6mm / 400mm / Black
Stem On-One Hot Box V2 Stem / 60mm / 7 Degree / 31.8mm
Tyres Panaracer FireSport 29" Wire Bead Tyre / 2.35"
Brake spare SRAM Hydraulic Hose Fitting Kit Includes Barb And Olive / Single Olive  
Brake spare SRAM Hydraulic Hose Fitting Kit Includes Barb And Olive / Single Barb  
Inner Tube Panaracer Inner Tube / 29 inch / 1.75-2.35 inch / Presta 48mm  
Head Set Planet X Headset Spacer Set / 1 1/8" / 15mm + 10mm + 5mm / Black  
Seat Clamp On-One Forged Alloy Bolt Up Seatclamp V2 / 34.9mm / 15mm / Black  
Bottom Bracket SRAM DUB BSA Bottom Bracket / 73mm  
Brake spare Avid Centreline Disc Brake Rotor / 180mm 6 Bolt  
Seat Post On-One Twelfty V2 6061 Alloy Seatpost / 31.6mm / 400mm / Black  
Brake spare Avid Centreline Disc Brake Rotor / 160mm 6 Bolt  
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  
Head Set Selcof Semi-Integrated Cup Cartridge Bearing Headset For Tapered 1 1/8th 1.5 Fork Steerer  
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 Rear Mech / 12 Speed  
Wheel Pair On-One Wide Trail 29er Boost 6 Bolt Wheelset / Shimano 11 Speed  
Fork RockShox 35 Gold RL DebonAir 29" BOOST Fork / 130mm / 15x110mm / Gloss Black / Crown Adjust  

Key features

Finance Available
Spread the cost of this bike over 10 months with Interest-Free Credit or Spread the cost over 12, 24 or 36 months. Subject to Status
Customise your bike
We hand build our bikes, so you can customise your bike how you like it. Choose your frame size then select from the array of choices so your bike is just how you like it.
Direct To Customer
At Planet X we supply everything we make direct to customer, there's no middle men or wholesalers adding anything to the cost. That's why we're able to offer you unmatched value for money- straight from our warehouse to your door
Yorkshire Born and Bred
Our bikes are designed, tested and assembled in Yorkshire. Every model is put through its paces across the toughest road or off-road routes that the Peak District has to offer. Just like us, they are Yorkshire Born and Bred

Geometry

Geometry

Size & Specs

Bike frame geometry
  SMALL MED LRGXLG
AHead Angle (degrees)65.065.065.065.0
B Head Tube (mm)100110120135
C Top Tube Effective(mm)580615630655
D Seat Tube Angle (degrees)75757575
E Seat Tube C-T Actual (mm)380420460500
F Chainstays (mm)444444444444
G BB Drop (mm)58585858
I Stack (mm)609619628641
J Reach (mm)415446460480
K Front Centre (mm)725762779807
M Fork Offset (mm)51515151
O Wheelbase (mm)1169120612231251
P Standover (mm)XXXX

Buying a bike from Planet X?

Why are prices so low?
Our prices are lower than the competition because we sell direct to you the customer; there are no middlemen to take a slice of the price you pay. We design and build everything ourselves so you get exactly what you pay for and that includes amazing service and unrivalled value for money.

How it works
You can order online via our website,  If you would like advice on sizing and specifications then you can email our customer service dept. You can also contact us via Live Chat

Buying online in confidence
Simply select your frame size and colour below and choose from the range of customisable options. Your bike will then be passed to one of our expert mechanics to build YOUR bike exactly the way YOU want it.

Buy in confidence

Crash replacement policy

2 year warranty

Custom built to your specifications

Built to order in the UK
Built to order in the UK

We design and assemble every bike we sell right here in Yorskhire. We work with the leading component vendors and fabrication facilities  to create bikes of unrivalled performance and value for money.

Can't see the upgrades you want on your bike? Give us a call today and we can build the custom bike of your dreams.

Need help? E-Mail our technical experts

https://www.planetx.co.uk/contactus

Custom build option available
add to basket and customise
Build your bike in 3 simple steps.
Step 1: Select bike size and colour (by choosing a frame)
Frame View size guide Stock
Gloss Orange Large Gloss Orange Large £999.99 Due in: 20/11/2019
Gloss Orange Medium Gloss Orange Medium £999.99 Due in: 20/11/2019
Gloss Orange Small Gloss Orange Small £999.99 Due in: 20/11/2019
Gloss Orange X-Large Gloss Orange X-Large £999.99 Sold Out
Raw Phosphate Large Raw Phosphate Large £999.99 Sold Out
Raw Phosphate Medium Raw Phosphate Medium £999.99 Due in: 20/11/2019
Raw Phosphate Small Raw Phosphate Small £999.99 Due in: 20/11/2019
Raw Phosphate X-Large Raw Phosphate X-Large £999.99 Sold Out
Step 2: Choose your options

Need help?

Contact our technical experts

Choose Components

Brake Setup Choose your braking setup.
Select
UK Brake Lever Setup Rear Brake Left  FREE i
Select
EURO - USA Hydraulic Disc Brake Lever Setup Rear Brake Right £50.00 i
Frame
Select
On-One Big Dog 29" Mountain Bike FrameGloss Orange | Small  FREE i
Select
On-One Big Dog 29" Mountain Bike FrameRaw Phosphate | Medium  FREE i
Select
On-One Big Dog 29" Mountain Bike FrameGloss Orange | Medium  FREE i
Select
On-One Big Dog 29" Mountain Bike FrameGloss Orange | Large  FREE i
Select
On-One Big Dog 29" Mountain Bike FrameRaw Phosphate | Small  FREE i
Grips
Select
On-One Half Bob Lock-On Foam GripsBlack  FREE i
Select
On-One Half Bob Lock-On GripsBlack £5.00 i
Select
On-One Knurl GripBlack £7.99 i
Handlebar Our standard build is usually perfect but you can choose a bar that suits your needs.
Select
On-One Enduro6 Riser Handlebar780mm | 31.8mm | Black  FREE i
Select
Selcof Carbon Flat Handlebar740mm £20.99 i
Select
On-One Knuckleball Carbon HandlebarHard | Black | 747mm £45.00 i
Select
On-One Knuckleball Carbon HandlebarHard | Black | 777mm £45.00 i
Saddle Have a preference on saddle design or simply want a lighter saddle? Upgrade now!
Select
Selle Royal Tec Reactor Tm Saddle Black Steel Rail83816844 £7.99 i
Select
San Marco Bioaktive Sportive Fusion Large Saddle £7.50 i
Select
San Marco Monza Start SaddleBlack | Carbon Steel  FREE i
Select
Selle Italia X3 BOOST SaddleBlack | Alloy £15.00 i
Select
San Marco Aspide Open Start Up SaddleMagnesium | Black £19.99 i
Select
Selle Italia Lady Flow SaddleBlack £19.99 i
Select
Selle Royal Sport Performa Seta S1 SaddleBlack £30.00 i
Select
PRO Turnix Women's Carbon SaddleBlack £33.99 i
Select
Selle Italia SLR Saddle FlowTi 316 | Black £59.99 i
Stem Our standard build is normally great, but you can change the geometry of your ride and get the right fit - choose the stem length that's right for you.
Select
El Guapo Stallion Stem60mm | Grey £5.00 i
Select
El Guapo Stallion Stem50mm | Grey £5.00 i
Select
On-One Hot Box V2 Stem60mm | 7 Degree | 31.8mm  FREE i
Select
On-One Hot Box V2 Stem50mm | 7 Degree | 31.8mm £5.00 i
Select
On-One Hot Box V2 Stem70mm | 7 Degree | 31.8mm £5.00 i
Tyres
Select
On-One Smorgasbord 29"x2.25" Tyre Trail Extreme Folding Bead Dual 60/42a Black £30.00 i
Select
Vittoria Goma 29 Inch Folding Tyre2.4 inch | Black £15.00 i
Select
Maxxis Aggressor EXO TLR 29 Folding Tyre29" | 2.3" £30.00 i
Select
Continental Trail King 29" Folding Tyre2.4" £20.00 i
Select
Continental Mountain King II Protection Black Chilli Folding Tyre29" | 2.4" | Black £35.00 i
Select
Panaracer FireSport 29" Wire Bead Tyre2.35"  FREE i

Optional Accessories

Bottle Cage We're famous for our bottle cages, don't miss out and treat your yourself to a bottle cage for your new bike.
Select
NO THANKS  FREE
Select
Planet X Alloy Bottle CageBlack £0.99 i
Select
Planet X Ambi Plastic Bottle CageBlack £3.00 i
Select
Planet X Alloy Bottle CageSIlver £3.00 i
Select
Planet X Bi Plastic Bottle CageBlack £5.00 i
Select
Planet X Fang Plastic Bottle CageBlack £5.00 i
Select
Planet X Nightwolf Plastic Bottle CageBlack £5.00 i
Select
Planet X Stainless Steel Bottle CageBrushed £7.99 i
Select
Planet X Mantis Alloy Bottle CageBlack £8.00 i
Select
Planet X Pro Carbon Bottle CageBlack | Matt £13.00 i
Select
Selcof Carbon BottlecageBlack £13.00 i
Select
Planet X Pro Carbon Bottle CageBlack | Gloss £13.00 i
Select
Selcof Carbon BottlecageBlack and Silver £13.00 i
Select
Planet X Pro Carbon EVO Bottle CageGloss Black £13.00 i
Select
Planet X Titanium Bottle CageBrushed £21.00 i
Pedals New bike? Get some new pedals!
Select
NO THANKS  FREE
Select
Jobsworth SPD Compatible Pedals Black With Cleat £17.99 i
Select
Jobsworth Dual Sided MTB Pedal Black With Cleat £17.99 i
Select
VP-531 Aluminium Flat Platform PedalsBlack £21.00 i
Select
El Guapo Toro Flat PedalBlack £21.00 i

Rest of range