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*Demand has been absolutely incredible, which I am very appreciative of. All new orders placed on non-stock items are looking at about an 8 week ETA


Catalyst Fatbike Cranks are everything that makes the Catalyst Cranks a hit but a bit wider spindle is used for your huskier, more generously proportioned  steed. These are strong, light, beautiful, and made right here in-house.


The mirror-smooth flat faces contrast nicely with radically surfaced machining lines to create a crank equally as pleasing on your steel winter singlespeed adventurebike as they are on the latest swoopy carbon bombsled.


Please email us with any questions.



Build your set in any color combination to suit your fancy.

Custom cerakoting and anodizing, just leave a note as the colors desired.

Custom length options available, just email us.


Different length spindles may be required depending on the vast array of Fatbike spacings out there. Please view the drawing in the pics section and the specs below to verify these will fit on your frame!!! 


Standard specs:


Lifetime Limited Warranty*

193mm Q factor

120-126mm K factor (most fatbike BB standards using a 100mm shell)

30mm spindle

550-580g including arms, spindle, and all hardware (bolts, extractor caps,preloader)

standard 3 bolt splined chainring mounting (bolts included)

150-170mm lengths (custom lengths upon request)

ISO 4210-8 tested and certified by an independent testing lab






Catalyst Fatbike Cranks

Crank Arm Color (custom color is last option)
Hardware Color
  • I ship out orders as soon as humanly possible on my end. Just like you, when I hit "buy it now" I want my gear ASAP. 

    Orders will usually ship M-F during normal business hours here on the east coast and Monday if you place your order F-Su 

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