Aaron Lutze's Crewkerz Jealousy

It’s amazing that the world champion rides essentially the same exact bike, right out of the box. I doubt any other bike rider in any discipline can do this, which speaks so highly to the effort that has gone into making the Crewkerz Jealousy. I would have happily done the same, but couldn’t resist making a change to the drivetrain by swapping out the front freewheel for an Industry Nine rear hub. I’m so unbelievably happy with this bike, although when the shorter frames come available, I may consider going slightly shorter (this frame is a Large - 1085mm wheelbase).

Check Out The Bike Build

Check out the Build video for the Crewkerz Jealousy.

If you’re in the USA, you can get this bike at Webcyclery.com. If you’re anywhere else, check out TartyBikes.co.uk.

Rear Wheel

Custom built by Matt Gilman - Industry Nine Hydra hub laced up to a Crewkerz WAW rim. Same gear ratio as the original Crewkerz drivetrain (15t rear).


Absolute Black chainring (18t) - Narrow Wide Narrow chainring, super light and strong. Fits perfectly on the Crewkerz WAW cranks. KMC e101 chain, strong enough for eBike torque, so I know it’ll hold up for Trials.


Out of the box, the bike was 19.2 lbs (8.7 kg) and with the new drivetrain, it’s 19.6 lbs (8.89 kg). Hilariously light, but plenty strong to hold up to whatever I can throw at this bike. Everything feels solid, even the carbon fork.

Full Specs

Frame: 2022 Crewkerz Jealousy

Fork: Crewkerz WAW Carbon 26", 9mm bolt through axle

Headset: Sealed bearing, 1 1/8" top and 1.5" bottom

Stem: Crewkerz WAW WPP RS Forged, 155mm

Handlebar: Crewkerz WAW Ultimate Carbon 102mm Riser

Grips: Deity Supracush

Brakes: Magura HS33 with Trialtech Carthy Signature lever

Seat: Ha ha :)

Wheels: Hashtagg, 32h, H-profile single wall, 32mm wide (front), 47mm wide (rear)

Tires: Vee Tire Co (2.0 front/ 2.4 rear)

Tubes/Tubeless: Tubed

Cranks: Crewkerz WAW, 170mm, with integrated axle

Bashring: Crewkerz WAW

Front Sprocket: Absolute Black NarrowWide 18t

Pedals: Crewkerz Single Caged

Chain: KMC Z1eHX

Chain Tensioner: Crewkerz

Geometry: (Large Frame)
- Wheelbase: 1088mm
- Chainstay: 380mm
- BB Height: +65mm
- Head Angle: 72°
- Centre of BB shell to centre top of head tube: 680mm
- Reach: 504mm
- Stack: 433mm
- Weight: 8.65kg with pedals.