CBPXJFSX
Retro styling with modern geometry. The 29er Jack Flash keeps the looks of it's 26 inch dirt jumping cousin but rolled out into a progressive trail hardtail package.
We've 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? We've 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)
Pedals not included? Why not?
Pedal choice is a personal thing. Most higher end bikes are expected to be ridden with clipless pedals. These are matched to cleats on the underside of your cycling shoes. There are a few standards of these, and most cyclists tend to stick with one standard across all their bikes. So, you don't need to buy multiple pairs of shoes! Thats why Planet X don't sell bikes with pedals included. If you wish to add pedals to your order, simply select an option from the drop-down menu.
NOTE: Please make sure you check the size guide to order the correct size of this frame.
How do I unbox and set up my bike when it arrives
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
| Rider Height | Suggested Frame Size |
|---|---|
| 5'7" - 5'11" | Medium |
| 5'10" - 6'1" | Large |
| 6' = 6'4" | 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.
| MED" | LRG" | XLG" | ||
| - | Rider Height | 5'7" - 5'11" | 5'10" - 6'1" | 6' - 6'4" |
| A | Head Angle (degrees) | 65.0 | 65.0 | 65.0 |
| B | Head Tube (mm) | 100 | 120 | 135 |
| C | Top Tube Effective(mm) | 600 | 639.4 | 657.2 |
| D | Seat Tube Angle (degrees) | 75 | 75 | 75 |
| E | Seat Tube C-T Actual (mm) | 420 | 460 | 500 |
| F | Chainstays (mm) | 445 | 445 | 445 |
| G | BB Drop (mm) | 58 | 58 | 58 |
| I | Stack (mm) | 609 | 628 | 641 |
| J | Reach (mm) | 440 | 460 | 480 |
| K | Front Centre (mm) | 752 | 783 | 809 |
| M | Fork Offset (mm) | 51 | 51 | 51 |
| O | Wheelbase (mm) | 1191 | 1222.2 | 1248.6 |
Custom options available on components showing this spanner
| Brake Setup | UK Brake Lever Setup Rear Brake Left | ||
| Seatpost | On-One Twelfty V2 6061 Alloy Seatpost / 31.6mm / 400mm / Black | ||
| Bar Tape / Grips | On-One Knurl EVO Grip / Black | ||
| Seat Clamp | On-One Forged Alloy Bolt Up Seatclamp V2 / 34.9mm / 13mm / Black | ||
| Tyre | Impac SmartPac Rigid Tyre / 29 Inch / 2.25 Inch | ||
| Saddle | San Marco Monza Start Saddle / Black / Carbon Steel | ||
| Stem | On-One Hot Box V2 Stem / 50mm / 7 Degree / 31.8mm | ||
| Brake | SRAM Level Hydraulic Disc Brake / Front / 900mm / Post Mount 20mm Spacers | ||
| Chain | SRAM SX Eagle 12 Speed Chain / 126 Link | ||
| Brake | SRAM Level Hydraulic Disc Brake / Rear / 1600mm / 20 Post to IS | ||
| Handle Bar | On-One Enduro6 Riser Handlebar / 780mm | ||
| 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 | WTB I29 29er On Formula Boost 6 Bolt Wheelset / Shimano 11 Speed | ||
| 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 | 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 / ZS44/28.6 IS56/40 |
| Fork Length (mm) | 530 |
| Cable Routing | INT/EXT |
| Dropper Compatible | Stealth |
| Rider Height | Suggested Frame Size |
|---|---|
| 5'7" - 5'11" | Medium |
| 5'10" - 6'1" | Large |
| 6' = 6'4" | 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.
Build your bike in 3 simple steps
Bought this bike back in January and have had nothing but problems with it. Really disappointed with it, the build quality is shocking not one bolt seem to be tightened securely. Both front and back brakes have failed, the disc came loose where they werent put together properly, Planet X assured me this was normal and that its just bedding in. Havent had the chance to ride it much (10 short rides max) and it seems to be something every time. If I were you Id avoid at all costs.