Chapter2 AO Gravel Frameset Green & Orange Limited Color

Ships in 1 to 2 weeks.
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In the rapidly expanding and changing world of gravel, the Chapter2 AO gravel bike bridges the entire genre. From long distance enduro epics to full gas racing to exploring new roads and trails, the AO is versatile enough to not only adapt, but excel, wherever the gravel road might take you. Its spirit is encapsulated by a quote along its top tube: Not All Who Wander Are Lost.  

Chapter2 began with an all new geometry that features a (when compared to the Chapter2 Tere) higher stack, longer wheelbase, dropped BB, and slacker head tube angle in pursuit of a more stable ride in off-road situations. The reach remains similar, as does the trail, meaning that the Tere and AO will feel similar and does not have that ‘sluggish’ feel that plagues many slacker off-road bikes.

What does this mean in simpler terms? The AO is stable offroad, yet still feels like a road bike. It is the very definition of the genre-blending space gravel riding occupies. Chapter2 even added a nifty feature that allows the user to adjust the effective length of the chainstays based on tire size and user preference. 

This versatility continues with the AO’s ability to run 2x or 1x, cable routing for a dropper seatpost, and clearance for 700c or 650b tires. There are mounts for fenders, three bidon cages, and a bento box, yet the AO is lighter than many other touted gravel framesets on the market.  Pair all this with an English threaded bottom bracket, a 31.6mm carbon seatpost, flat mount disc brakes, 12mm thru axles, compatibility with mechanical or electronic shifting, and you begin to see the true scope of riding possibilities the AO can deliver.

The Chapter2 AO ships as a frameset with a carbon seatpost, stem, headset, spacers, and thru axles. If you want top build a complete bike, contact us


Frame Specs:                     

  • Carbon:                    Toray® T800, T700 & 3K Directional Carbon
  • Frame 5 Sizes:          XS, S, M, L & XL
  • Frame Weight:          1040 Size M +/- 3%
  • Fork:                        427g Uncut +/- 3%
  • Seatpost:                  210g +/- 3%
  • Stem:                       80mm, 90mm, 100mm, 110mm and 120mm (+/-7°)
  • Headset:                   CHAPTER2 Tapered 1-1/8” – 1.5”
  • BB:                           BSA Threaded English
  • Electronic Shifting:     SHIMANO® Di2, SRAM® eTAP & Campagnolo® EPS compatible
  • Battery Type:             Di2 SM-BTR-2 and EPS V3 Battery compatible
  • Tire Clearance:           42mm (700c) & 47mm (650B)
  • Brake Type:               Disc Only
  • Disc Brake Spec:        Flat Mount
  • Thru Axle Length:       FR 12x100mm, RR 12x142mm
  • E-Thru Axle Type:       M12 x 1.5mm   
  • Compatible with Mana Cockpit



  • Frame 
  • Fork 
  • Stem
  • C2 Fork Expansion Bolt
  • Headset
  • Headset Spacer Kit
  • Seatpost
  • Thru Axles
Build Type:
Frameset Disc Brake