This bike is built in our workshop before dispatch, and we often have a queue. The current lead time can be seen by adding this bike to your basket. Some basic assembly is required on arrival, we are happy to help if you need.
- Component updates for 2026!
- From the same family of bikes as used by record breaking World Champion Jack Carthy, and 2023 Junior World Champion Oliver Weightman!
- As used by Tarty Bikes sponsored rider Eddie Weightman!
- The most uncompromising 20" bike Crewkerz has ever made, sharing most of the same features as the Jealousy Nextgen 26" bike (arguably one of the most successful platforms in cycle trials history!), the Jealousy Nextgen 20" bikes offer unrivalled performance.
- The latest model has a completely redesigned frame with aesthetic and performance improvements throughout, including:
- Completely new, hydro-formed tubing, made from 6066 T6/T7 alloy reduces 'Latency' (frame flex) by 8% compared to previous generation frames, meaning less distortion under heavy loads for more control, and precision riding to meet the demands of the current generation of powerful riders.
- Tube thickness has been refined to increase durability, and further improve frame stiffness in key areas.
- An integrated top yoke to further stiffen the rear brake mounts, with flowing lines into the top tube. The new brake mounts also feature greater clearance for use with brake clamps using 'conical' washers, allowing for more precise brake set up, and easier maintenance.
- A smaller, 120mm head tube lowers the stack height by around 9mm. This helps reduce the flex from torsional loads at the head tube junction, improving steering precision, and gives more clearance for modern, dynamic moves.
- Newly designed rear drop-outs are angled to raise the seat stays, helping to improve rear axle stability under preload, and in the upright position.
- The Crewkerz Carbon tensioner receives a new spring design, improving the range of motion of the tensioner arm, and the durability of the spring.
- Proven WAW components remain for 2026, including the brand new WAW Ultimate 108 engagement rear freehub (optional upgrade), WAW Ultimate front and rear rims, WAW carbon 108mm handlebars and WAW Carbon fork.
- The WAW crank has been updated with a new axle design and manufacturing process, reducing weight and improving durability.
- Stylish, exclusive, World Championship decals, give a striking, modern look on the matt silver frame!
- Available in Small and Medium size frames.
Frame and Fork
- Frame:
New Crewkerz Jealousy Ultimate 'Nextgen' 20" 6066 T6
- Fork: Crewkerz WAW Carbon 20", reinforced 4-Bolt mount or post-mount style disc mount, 9mm bolt through axle, 180mm tapered steerer tube and integrated crown race
Wheels
- Front hub: Crewkerz WAW sealed bearing, 9mm bolt through axle
- Rear hub: Crewkerz WAW sealed bearing, 12mm bolt through axle, splined sprocket interface or optional upgrade to
New WAW Ultimate rear freehub
- Chain tensioner:
New Crewkerz Carbon Sprung Tensioner
- Front rim:
NewWAW Ultimate, 28h, H-profile single wall, 32mm wide
- Rear rim:
NewWAW Ultimate, 32h, H-profile single wall, 47mm wide
- Spokes: Double butted, black
- Nipples: Aluminium, anodised black.
- Rim tape: Crewkerz, black
- Inner tube (front): TBC
- Inner tube (rear): TBC
- Front tyre:
New Crewkerz WAW 20" x 2.0"
- Rear tyre:
New Crewkerz WAW 19" x 2.6"
Brakes
- Front brake: Magura HS33 with Trialtech Sport lever. New Crewkerz HS rim brake pads! Or optional upgrade to Hope Tech 4 EVO Trial Zone disc brake.
- Rear brake: Hope Tech 4 EVO Trial Zone disc brake.
- Brake clamps: Crewkerz WAW - these use cylindrical washers. Standard plastic Magura cylindrical washers are supplied, if you wish to upgrade to alloy ones, we sell the Trialtech cylinder washers
here. If you would like these fitted during the build, add some to your order, and let us know in the order notes!
Drivetrain
- Cranks:
New Crewkerz WAW, 160mm, with integrated axle and splined system freewheel or fixed sprocket when the bike is upgraded to the
New WAW Ultimate rear freehub
- Freewheel: Crewkerz WAW, 18t, 135 engagements or 18t fixed sprocket when the bike is upgraded to the
New WAW Ultimate rear freehub
- Chain: KMC Z1eHX, Black
- Rear Sprocket: Crewkerz Splined, 12t
- Pedals: Crewkerz Single Caged
- Bottom bracket: AS30 with aluminium axle, unique to Crewkerz, offering larger bearings and a stiffer interface
- Bashplate: Crewkerz
Steering
- Headset: Internal style, sealed bearing, 1 1/8" top and 1.5" bottom
- Stem: Crewkerz WAW, 145mm x 20°
(various stem options are available to help cater for riders of most heights).
- Grips: Crewkerz Foam
- Handlebars: Crewkerz WAW Ultimate Carbon 108mm Riser
Small Frame Geometry
- Wheelbase: 995mm
- Chainstay: 350mm
- BB Height: +85mm
- Head Angle: 72°
- Centre of BB shell to centre top of head tube: TBC
- Weight: 7.7kg with pedals. TBC
b>Medium Frame Geometry
- Wheelbase: 1005mm
- Chainstay: 350mm
- BB Height: +85mm
- Head Angle: 72°
- Centre of BB shell to centre top of head tube: TBC
- Weight: 7.7kg with pedals. TBC
Technical Info
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