509 Jabit Fat Bike Frames should be in stock around the New Year! We will have two colors to choose from along with four different sizes : XS,S,M,L.

509 Cycles takes us back to a time where day to day living was not taken for granted and a sense of pride went into everything made. A time where hard work and perseverance were a necessity. Named after the WW II 509 Composite Group, 509 Cycles was born from our respect of loved ones who fought during war time. Much like that time period, we believe in family, working hard, taking pride in what we do and the freedom that comes along with that.

The 509 Cycles Fat Bike features a 177×12 rear end, English threaded bottom bracket, a 44mm headtube and suspension corrected. The frame is made out of double butted 4130 chromoly and it comes with an ED Coating, there is no need to frame save or worry about the frame becoming prone to rust.  When designing the bike we added a higher bb to prevent striking when riding technical single track, a steeper head tube angle for a more responsive feel and a narrow Q factor that can still clear  5″ tires on a 100mm rim. Fat bikes see a lot of snow, sand and salt that can damage a frame, so we added a solid thru axle set up on our frame without all the bolts to attach the dropout. The bolts can seize together or come loose over time so by removing them we created a solid bike that was made to last. 

  • 44mm Headtube
  • 177×12 rear axle
  • Threaded 100mm english BB
  • 31.6 Seatpost / 35mm Seatpost Clamp
  • 160mm disc rotor
  • Two water cage mounts
  • Suspension corrected for 100mm Travel
  • Use cranks for 170 rear end
  • Max chainring for 1x set up – 36T
  • Q – Factor 189mm

MSRP = $700, Includes seatpost clamp and Made in USA thru axle.



We offer 4 different color graphics with our frames : Gloss black, Euro blue, Cream & Brushed Silver.

Weight – 5lbs. 2oz. for Medium frame. ( We’ve got a complete bike down to 22 lbs with steel frame!)