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CBOOBBYFAT
On-One 'Fun Fatty' Fat Bike On-One 'Fun Fatty' Fat Bike
In stock
Current Build Queue: 5-7 Working Days
From £599.99 Was £799.99 25% off
£50.00/mth - 0% finance
(UK only) - More info
In stock

The world's first 24" fat bike, made for little or big kids, featuring a specially-designed 7005 alu frame with customary huge tyre clearance, and a SRAM X5 1x10 groupset.

  • Hand-welded 7005-T6 aluminium frame
  • SRAM X5 shifting alongside Avid DB3 Hydraulic Disk Brake stopping power
  • 24" wheels with 24 x 4.0" fatty tyres
  • The perfect fun bike - for kids and adults alike

Full Description

Finance Available

Pay over 12 or 24 months or with 0% interest free credit
Find out more about our Finance Options

Cycle to Work Options Available

Save up to 40% off your bike with Cycle to Work
Find out more about our Cycle To Work Options

Description

Here it is, the world's first 24 Fatbike. We've shrunk the Fatty and increased the fun with the On-One Fun Fatty; the perfect bike for little riders or big kids wanting a more street style fat ride.

How many kids' bikes come with a hand-welded 7005-T6 aluminium frame and SRAM X5? Not many - actually we can't really think of one - but the Fun Fatty does. It's lightweight, durable and above all really comfortable thanks to the mixture of frame and fork design and, of course, the massive 24 x 4.0 tyres. We've designed it with a minimal stand over height so little legs can get on and off easier, and manoeuvre well in deep snow and mud.

This build is full of features that are normally found on big people bikes, or indeed the Fatty itself: Avid DB3 Hydraulic Disk Brake, Truvativ E400 chainset with 32T chainring, On-One finishing kit, and the icing on the cake - SRAM X5 gearing. You might as well start the younger generations off on the right foot, and you can with X5's performance orientated design. Exact Actuation shifters and rear mech, big 11-36T PG-130 cassette it's all here and shifting with precision. No doubt thanks to an extra helping hand from the fully enclosed on-frame gear cable runs.

Whilst designed for the kids, we've all been raring to have a go on this. It will give a livelier, more throwable ride than its elder sibling, which make it perfect for the streets or pump track. So, buy it for your child and ride it yourself. It's a win-win situation either way.

Approximate weight: 14.8 kg

Full Spec

Custom options available
On components showing this spanner
Brake Front Avid DB3 Hydraulic Disk Brake / Front / 900mm / 20 Post To Post / Black
Brake Rear Avid DB3 Hydraulic Disk Brake / Rear / 1600mm / Direct Mount
Cassette SRAM PG-1020 10 Speed Cassette / 11-36T
Chain KMC X10 10 Speed Chain / Silver
Chainset Truvativ E400 Chainset / 165mm / Black / 32T
Forks On-One Baby Fatty Fork / White
Grips On-One Half Bob Lock-On Grips / Black
Handlebars El Guapo Ancho B Handlebar / 760mm / Black / 31.8mm Clamp
Rear Mech Sram X5 Rear Mech / 10 Speed / Black / Medium
Saddle WTB Volt Sport Saddle / Black
Seatclamp On-One Forged Quick Release Seatclamp / 34.9mm / Black
Seatpost On-One Seatpost Twelfty Sport MTB Seatpost- Black / 31.6mm
Shifter Rear Sram X5 Trigger Shifter / 10 Speed / Right Hand / Black
Stem On-One Hot Box Stem / 60mm / Polished Black / 7 degrees / 31.8mm Clamp
Tyres Veerubber Vee Mission Fat Bike Folding Tyre / 24 x 4.0 Inch / Black / Light Weight
Wheelset On-One Baby Fatty Wheelset
Chain Ring Stronglight Chainring Bolt / Fits Inner Chainring  
Head Set Planet X Headset Spacer Set / 1 1/8" / 10mm + 10mm + 10mm + 5mm / Black  
Inner Tube On-One Baby Fat Bike 24" Inner Tube / Presta / 28mm  
Bottom Bracket Truvativ Spacer Kit / GXP  
Brake spare Avid Brake Mount Adapter / Front Or Rear / 20mm / Post To IS  
Head Set FSA Crown Race For DX Pro Headset / 1 1/8" Steerer Tubes  
Seat Clamp On-One 6061T6 Forged Alloy Seatclamp Bolt Up / 34.9 mm  
Chain Ring On-One Ringmaster Chainring / Black / 30t  
Brake spare Avid Clean Sweep G2CS Rotor / 160 mm / 6 Bolt  
Brake spare Avid Clean Sweep G2CS Rotor / 180mm / 6 Bolt  
Head Set FSA Orbit ITA Headset / 1.5" Lower With 1 1/8" Upper / Black / Lower External With Upper Integrated  

Key features

Baby Fatty/ Fun Fatty Frame
Fat Bike frame built around a 24" fork and wheelset so kids and smaller adults can enjoy fat tyred off-road fun like the rest of us
SRAM X5 Groupset
X5 components help off-road enthusiasts take it to the next level. With smooth, precise X-Glide shifting and legendary SRAM 10-speed performance, X5 brings out the best in any bike—and in every rider
Baby Fatty 24
All the fun of a full size Fat Bike but in a smaller 24|" wheel size that makes it perfect for smaller riders who still want big fun
Direct To Customer
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
  One Size
AHead Angle (°)69
BHead Tube Length (mm)100
CEffective Top Tobe horizontal (mm)555
DSeat Angle (°)72.5
ESeat tube Length centre to Top (mm)350
FChainstay Length (mm)420
GBB Drop (mm)24
If you're unsure about the size you need, please call our customer services team to see if we can help +44 (0)1709 38 66 66

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 buy from us in three different ways. You can call into one of our showrooms and try the bike you want before you place your order. You can order online via our website, or if you're too busy to call into the shop but would like advice on sizing and specifications then you can email or call our customer service dept. You'll receive the same great service no matter how you buy.

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? Call our technical experts

01709 386 666

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
One Size One Size £599.99 Was £799.99 25% off In Stock
Step 2: Choose your options

Need help?

Call our technical experts on: 01709 386666

Choose Brake Setup

Brake Setup
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Rear brake LEFT - like normal    
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Rear brake RIGHT - like the Euros    

Choose Components

Bottle Cages
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No Bottle Cages Thanks  FREE
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Planet X Alloy Bottle CageSilver £2.00 i
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Selcof Policarb Bottle CageBlack £2.00 i
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Planet X Alloy Bottle CageRed Anodised £2.00 i
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Planet X Alloy Bottle CageBlack £2.00 i
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Selcof Policarb Bottle CageWhite £2.00 i
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Nerve Ultralight Carbon Bottle CageGloss Black £14.99 i
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Nerve Ultralight Carbon Bottle CageMatt Black £14.99 i
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Selcof Carbon BottlecageWhite £14.99 i
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Selcof Carbon BottlecageBlack £14.99 i
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Pair Of Planet X Pro Carbon Bottle Cages - Matt Black £34.99 i
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Pair Of Planet X Pro Carbon Bottle Cages - Gloss Black £34.99 i
Brake Front
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SRAM Guide R Hydraulic Disc BrakeFront | 900mm | Post Mount 20mm Spacers £40.00 i
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Avid DB3 Hydraulic Disk BrakeFront | 900mm | 20 Post To Post | Black  FREE i
Brake Rear
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Avid DB3 Hydraulic Disk BrakeRear | 1600mm | Direct Mount  FREE i
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SRAM Guide R Hydraulic Disc BrakeRear | 1600mm | 20 Post To IS £40.00 i
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Avid DB5 Hydraulic Disk BrakeRear | 1600mm | 20 IS to Post £10.00 i
Chain
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KMC X10 10 Speed ChainSilver  FREE i
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KMC X10-EL Extralight ChainNickel Plated (Silver) £10.00 i
Grips
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On-One Half Bob Lock-On GripsBlack  FREE i
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On-One Half Bob Lock-On Foam GripsBlack  FREE i
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On-One Bob On Lock-On GripsBlack  FREE i
Handlebars
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El Guapo Ancho B Handlebar760mm | Black | 31.8mm Clamp  FREE i
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On-One Knuckleball Carbon HandlebarHard | Black | 777mm £30.00 i
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On-One Knuckleball Carbon HandlebarHard | Black | 747mm £30.00 i
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On-One Knuckleball Carbon HandlebarHard | White | 777mm £30.00 i
Saddle
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San Marco ERA Dynamic Glamour Ladies SaddleBlack £5.00 i
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WTB Volt Sport SaddleBlack  FREE i
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WTB Volt Saddle On-One EditionBlack £7.00 i
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WTB SL8 Pro SaddleBlack £18.00 i
Seatclamp
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El Guapo Lazo Post Clamp34.9mm | Black £1.00 i
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On-One Forged Quick Release Seatclamp34.9mm | Black  FREE i
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On-One 6061T6 Forged Alloy Seatclamp Bolt Up34.9 mm  FREE i
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On-One TECH Series CNC Quick Release Seatclamp34.9 mm | Black £4.00 i
Seatpost
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On-One Seatpost Twelfty Sport MTB Seatpost- Black31.6mm  FREE i
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Planet X Light Alloy Seatpost31.6mm | Polished Black  FREE i
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On-One Twelfty MTB Seatpost31.6mm | Anodised Black £8.00 i
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Thomson Elite Seatpost31.6mm | Black | 410mm | Inline £48.00 i
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Rockshox Reverb 125mm Drop Seatpost31.6mm | 420mm | Black | Right 1650mm £158.00 i
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Rockshox Reverb 125mm Drop Seatpost31.6mm | 420mm | Black | Left 1500mm £158.00 i
Stem
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On-One Hot Box Stem70mm | Polished Black | 7 degrees | 31.8mm Clamp  FREE i
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On-One Hot Box Stem60mm | Polished Black | 7 degrees | 31.8mm Clamp  FREE i
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On-One Hot Box Stem90mm | Polished Black | 7 degrees | 31.8mm Clamp  FREE i
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On-One Hot Box Stem50mm | Polished Black | 7 degrees | 31.8mm Clamp  FREE i
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On-One Hot Box Stem80mm | Polished Black | 7 degrees | 31.8mm Clamp  FREE i
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On-One Hot Box Stem100mm | Polished Black | 7 degrees | 31.8mm Clamp  FREE i
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El Guapo Corto Stem45mm | Black £15.00 i
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El Guapo Corto Stem35mm | Black £15.00 i
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El Guapo Corto Stem55mm | Black £15.00 i

ebpChooseAccessories

Pedals
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NO THANKS  FREE
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On-One Platform Pedals/ Clear £5.00 i
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On-One Platform Pedals/ Black £5.00 i
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Shimano M520 SPD PedalsBlack £24.99 i
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Shimano M520 SPD PedalsSilver £29.99 i
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Shimano XT M8020 SPD Trail PedalsBlack £69.99 i
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Shimano XT M8000 XC Race PedalsSPD £69.99 i
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Shimano XT M780 SPD XC Race PedalsMTB £79.99 i

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