Retro styling with modern geometry. The 29er Jack Flash keeps the looks of its 26 Inch Dirt jumping cousin but rolled out into a progressive trail hardtail package.
Weve kept the things you love, the gusseted headtube junction and X stamped chain stay bridge, the clearance and low stand over height, but refined the design to give you a progressive trail bike compatibe with modern componetry.
The 2020 Jack Flash features:
What happens when you take the Iconic Planet X Jack Flash Frame but update it for a modern crowd. Weve kept the things you love, the gusseted headtube junction and X stamped chain stay bridge, the clearance and low stand over height, but refined the design to make it more functional and easier to build and maintain with modern components. With progressive geomerty focused on trail riding this 130mm 29er hardtail will be able to attack any trail you throw at it. Other features include stealth dropper routing, internal cables and wide tyre clearance.
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 is SRAM's entry level Eagle groupset. Positive, 12 speed sequential shifting up to a 51 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.
Approx Weight: 14kg (Medium)
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Brake Setup | UK Brake Lever Setup Rear Brake Left | ||
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Seatpost | On-One Twelfty V2 6061 Alloy Seatpost / 31.6mm / 400mm / Black | ||
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Seat Clamp | On-One Forged Alloy Bolt Up Seatclamp V2 / 34.9mm / 13mm / Black | ||
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Bar Tape / Grips | On-One Knurl EVO Grip / Black | ||
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Handle Bar | On-One Enduro6 Riser Handlebar / 780mm / 31.8mm / Black | ||
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Saddle | San Marco Monza Start Saddle / Black / Carbon Steel | ||
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Tyre | Vittoria Saguaro Folding Tyre / 29 inch / TNT 2.2" / Black | ||
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Stem | On-One Hot Box V2 Stem / 50mm / 7 Degree / 31.8mm | ||
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Chain | SRAM SX Eagle 12 Speed Chain / 126 Link | ||
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Brake | SRAM Level Hydraulic Disc Brake / Rear / 1600mm / 20 Post to IS | ||
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Brake | SRAM Level Hydraulic Disc Brake / Front / 900mm / Post Mount 20mm Spacers | ||
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Gear Levers | SRAM SX Eagle Trigger Shifter / 12 Speed Right | ||
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Crank Set | SRAM SX Eagle DUB Crankset / 170mm / 32 Tooth / BOOST | ||
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Cassette | SRAM PG-1210 Eagle 12 Speed Cassette / 11-50 | ||
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Rear Mech | SRAM SX Eagle Rear Mech / 12 Speed | ||
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Wheel Pair | Mach1 Trucky 29er on Novatec Boost 6 Bolt Wheelset / Shimano 11 Speed | ||
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Fork | Rockshox Judy Silver TK 29" Boost Fork / 130mm / 15x110mm / Gloss Black / Crown Adjust |
| Frame Material | 6061-T6 |
| Frame Weight, Approx, (med) (g) | 2kg |
| Fork | 120-130mm |
| RR Axle (mm) | 148 BOOST M12 x 1.75, 12mm thread, 169mm |
| Seatpost Size (mm) | 31.6 |
| Seat Clamp Size (mm) | 34.9 |
| Front Mech Type | NA |
| Wheels | 29er |
| Max Tyre | 29 x 2.4" |
| Mudguard mounts | NA |
| Rack Mounts | NA |
| Bottle Cage Bosses | 1x |
| Brake Type | DISC POST |
| Bottom Bracket | BSA 73mm |
| Headset Type | Selcof Zero Stack : Tapered / IS44/28.6 IS56/40 |
| Fork Length (mm) | 530 |
| Cable Routing | INT/EXT |
| Dropper Compatible | Stealth |
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
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.
| Rider Height | Suggested Frame Size |
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| 5'7" - 5'11" | Medium / 510mm" |
| 5'10" - 6'1" | Large /540mm" |
| 6' = 6'4" | X-Large / 570mm |
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.
| Frame View size guide | |||
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Large Satin Black |
£699.99
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Customise |
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Large Gloss Burnt Orange |
£699.99
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Customise |
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Large Gloss Red |
£699.99
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Customise |
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Large Zesty Lime |
£699.99
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Customise |
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Medium Satin Black |
£699.99
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Customise |
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Medium Gloss Burnt Orange |
£699.99
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Customise |
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Medium Gloss Red |
£699.99
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Customise |
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Medium Zesty Lime |
£699.99
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Customise |
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X Large Satin Black |
£699.99
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Customise |
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X Large Gloss Burnt Orange |
£699.99
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Customise |
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X Large Gloss Red |
£699.99
|
Customise |
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X Large Zesty Lime |
£699.99
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Customise |
