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On-One Big Dog SRAM SX Mountain Bike

CBOOBDSX

£1,199.99
On-One Big Dog SRAM SX Mountain Bike On-One Big Dog SRAM SX Mountain Bike Free Dropper Seatpost - Ends 31/01
On-One Logo

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
From £1,199.99
FINANCE From £41.67/mth* More info
Expect your bike built in 7 - 10 days

Size guide and geometry

Key features

A seat post dropper is an essential mountain bike accessory and with the SELCOF cable actuated dropper post youll be attacking every climb with ease and conquering every descent confidently. Choose Customise Your Bike and Upgrade for only £109
0% Interest Free Finance Available
We have a range of 0% Interest-Free FInance options available up to 48 Months. Select the Finance option on checkout or visit our finance page for more information.
Cyclescheme
This bike is available as part of the CYCLESCHEME Cycle to Work programme. Select the CYCLESCHEME option upon checkout or visit our CYCLESCHEME page for more info.
SRAM SX Eagle Groupset
SRAM SX Eagle 1x12. SRAM's entry level Eagle groupset delivers 12 super wide ratio gears with silent chain retention, slick gear shifting and a super durable steel chainring.
On-One Big Dog MTB frame
Smooth steel, aggro angle, big wheel trail crusher.
Triple butted, tapered stay day ride smooth steel
Confidence boosting 65º head angle geometry.
Dropper post, rack and 29x2.5in tyre compatible.

Description

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

Sizing Guide

Rider HeightSuggested 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

Sizing Notes

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.

Bike frame geometry
  SMALL MED LRGXLG
AHead Angle (degrees)70.070.070.070.0
B Head Tube (mm)105125145160
C Top Tube Effective(mm)579604630654
D Seat Tube Angle (degrees)7405740574057405
E Seat Tube C-T Actual (mm)380431483510
F Chainstays (mm)450450450450
G BB Drop (mm)65656565
I Stack (mm)573591610624
J Reach (mm)420440460480
K Front Centre (mm)657684711734
M Fork Rake (mm)55555555
O Wheelbase (mm)1107113411611184
P Standover (mm)TBCTBCTBCTBC

Standard Bike Specification

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 Spare Steel Bottle Cage Bolt M5x16mm / Single
  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 XLC 29" Inner Tube / 2.1" - 2.35" / Presta / 33mm
  Head Set Selcof Headset Spacer Set / 1 1/8" / 15mm + 10mm + 5mm / Black
  Bottom Bracket SRAM DUB BSA Bottom Bracket / 73mm
  Brake spare Avid Centreline Disc Brake Rotor / 180mm 6 Bolt
  Brake spare Avid Centreline Disc Brake Rotor / 160mm 6 Bolt
  Head Set Selcof Semi-Integrated Cup Cartridge Bearing Headset

Frame Details

Frame Material4130
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 TypeN/A
Wheels29er
Max Tyre62mm / 2.4"
Mudguard mountsRear Only 
Rack MountsRR
Bottle Cage Bosses3
Brake TypeDisc - Post Mount
Bottom BracketBSA 73mm Shell
Headset Type44m
Fork Length (mm)530
Cable RoutingINT
Dropper CompatibleStealth

Size

Geometry

Sizing Guide

Rider HeightSuggested 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

Sizing Notes

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.

Customise this Bike

Build your bike in 3 simple steps

  1. Select your size and colour
  2. Choose your components
  3. Buy your custom bike

Step 1

Select size and colour by choosing below View size guide
Cobalt Green Large Cobalt Green Large £1,199.99
Cobalt Green Medium Cobalt Green Medium £1,199.99
Cobalt Green Small Cobalt Green Small £1,199.99
Cobalt Green X-Large Cobalt Green X-Large £1,199.99
Slate Grey Large Slate Grey Large Sold Out £1,199.99 Request Stock Alert
Slate Grey Medium Slate Grey Medium £1,199.99
Slate Grey Small Slate Grey Small £1,199.99
Slate Grey X-Large Slate Grey X-Large Sold Out £1,199.99 Request Stock Alert

Step 2: Choose Components

Brake 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
Fork
Select
Rockshox Judy Silver TK 29" Boost Fork130mm | 15x110mm | Gloss Black | Crown Adjust  FREE i
Select
RockShox 35 Gold RL DebonAir 29" BOOST Fork130mm | 15x110mm | Gloss Black | Crown Adjust £150.00 i
Select
MRP Raven 29" BOOST Fork130mm | Black | Tapered £300.00 i
Grips
Select
On-One Knurl GripBlack £8.00 i
Select
On-One Knurl EVO GripBlack  FREE i
Select
On-One Half Bob Lock-On Black Foam GripsBlack £5.00 i
Handlebar
Select
Controltech LYNX Alloy Flat Bar800mm | Red & White £10.00 i
Select
SB3 Unicolour AM740 HandlebarAbyss Blue | 20mm £15.00 i
Select
SB3 Unicolour TR740 HandlebarAbyss Blue £10.00 i
Select
SB3 Unicolour TR740 HandlebarGore Red £10.00 i
Select
SB3 Unicolour AM740 HandlebarGore red | 20mm £15.00 i
Select
Selcof Enduro6 Riser Handlebar780mm  FREE i
Select
Selcof Carbon Riser Handlebar740mm £25.00 i
Select
Selcof Carbon Flat Handlebar740mm £25.00 i
Saddle
Select
San Marco Monza Start SaddleBlack | Carbon Steel  FREE i
Select
San Marco Monza Start Wide SaddleBlack | Carbon Steel  FREE i
Select
San Marco GND Full-fit Start Up Wide £29.99 i
Select
San Marco Allroad Open-fit Wide Xlite £49.99 i
Select
San Marco Regal Evo Woven Xlite £59.99 i
Seat Clamp
Select
Selcof Forged Alloy Bolt Up Seatclamp V235mm | 12MM | Black £4.98 i
Select
On-One Forged Alloy Bolt Up Seatclamp V234.9mm | 13mm | Black  FREE i
Seatpost
Select
Selcof Twelfty Alloy Seatpost V331.6mm  FREE i
Select
Selcof Dropper Post150mm | 31.6mm  FREE i
Select
Rockshox Reverb Stealth Dropper Seatpost31.6mm | 2000mm Left | 467mm | 175mm £91.00 i
Stem
Select
On-One Hot Box V2 Stem70mm | 7 Degree | 31.8mm  FREE i
Select
Selcof Hot Box Stem60mm  FREE i
Select
On-One Hot Box V2 Stem60mm | 7 Degree | 31.8mm  FREE i
Select
Selcof Hot Box Stem50mm  FREE i
Select
On-One Hot Box V2 Stem50mm | 7 Degree | 31.8mm  FREE i
Select
Selcof Tickety Boo Stem35mm £10.00 i
Tyres
Select
Panaracer FireSport 29" Wire Bead Tyre2.35"  FREE i
Select
Schwalbe Nobby Nic Addix Performance Wired Tyre29 X 2.2 £30.00 i

Step 2: Optional Accessories

Bottle Cage
Select
NO THANKS  FREE
Select
Planet X Alloy Bottle CageSIlver £3.99 i
Select
Planet X Alloy Bottle CageBlack £3.99 i
Select
Planet X Nightwolf Plastic Bottle CageBlack £4.99 i
Select
Planet X Alloy Logo Bottle CageSilver £4.99 i
Select
Planet X Bi Plastic Bottle CageBlack £4.99 i
Select
Planet X Alloy Logo Bottle CageBlack £4.99 i
Select
Planet X Ambi Plastic Bottle CageBlack £4.99 i
Select
Planet X Stainless Steel Bottle CageBrushed £14.99 i
Select
Selcof Carbon Bottle Cage Gloss Black £16.99 i
Select
Selcof Carbon Bottle Cage Matt Black £16.99 i
Pedals
Select
NO THANKS  FREE
Select
Jobsworth Dual Sided MTB Pedal Black With Cleat £24.99 i
Shock Pump
Select
NO THANKS  FREE
Torque Wrench
Select
NO THANKS  FREE
Select
Jobsworth Pro Torque Wrench Set £29.99 i

Custom Bike Specification

On-One Big Dog SRAM SX Mountain Bike CBOOBDSX

Colour
Frame Size
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

Buying a bike from Planet X?

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

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

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.

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£1,199.99

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