2020 CHAPTER2 AO Base
- Category
- All-road/Gravel
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Carbon/Composite
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
XS | S | M | L | XL | |
Stack | 521mm | 548mm | 576mm | 605mm | 634mm |
Reach | 355mm | 366mm | 377mm | 388mm | 399mm |
Stack to Reach Ratio | 1.47:1 | 1.5:1 | 1.53:1 | 1.56:1 | 1.59:1 |
Seat Tube Length, C-T | 460mm | 480mm | 500mm | 530mm | 560mm |
Top Tube Length, Effective/Horizontal HT Top | 509mm | 528mm | 547mm | 567mm | 587mm |
Top Tube Slope | 9.4deg | 10deg | 10.6deg | 10.3deg | 9.9deg |
Head Tube Angle | 69deg | 70deg | 71deg | 72deg | 72deg |
Seat Tube Angle | 73deg | 73deg | 73deg | 73deg | 73deg |
Head Tube Length | 105mm | 130mm | 155mm | 179mm | 209mm |
Bottom Bracket Drop | 74mm | 74mm | 74mm | 74mm | 74mm |
Bottom Bracket Height | 272mm | 272mm | 272mm | 272mm | 272mm |
Chainstay Length | 420mm | 420mm | 420mm | 420mm | 420mm |
Chainstay Length Horizontal | 413.4mm | 413.4mm | 413.4mm | 413.4mm | 413.4mm |
Front-Center | 589mm | 601mm | 612mm | 617mm | 638mm |
Front-Center Horizontal | 584.6mm | 596.6mm | 607.6mm | 612.6mm | 632.6mm |
Wheelbase | 998mm | 1010mm | 1021mm | 1026mm | 1046mm |
Fork Offset/Rake | 55mm | 55mm | 55mm | 50mm | 50mm |
Fork Length, Unknown | 399mm | 399mm | 399mm | 399mm | 399mm |
Trail | 73.9mm high | 67.4mm high | 61mm mid/neutral | 59.9mm mid/neutral | 59.9mm mid/neutral |
Mechanical Trail | 69mm | 63.3mm | 57.7mm | 56.9mm | 56.9mm |
Wheel Flop | 24.7mm | 21.7mm | 18.8mm | 17.6mm | 17.6mm |
Standover Height | 740mm | 764mm | 790mm | 820mm | 849mm |
Tire to Pedal Spindle | 73mm 170 mm cranks | 85mm 170 mm cranks | 96mm 170 mm cranks | 101mm 170 mm cranks | 122mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 102mm 170 mm cranks | 102mm 170 mm cranks | 102mm 170 mm cranks | 102mm 170 mm cranks | 102mm 170 mm cranks |
Base Build
XS | S | M | L | XL | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 35mm | 35mm | 35mm | 35mm | 35mm |
Tire Width Max | 42mm | 42mm | 42mm | 42mm | 42mm |
Tire Outer Diameter | 692mm | 692mm | 692mm | 692mm | 692mm |
Bike Length with Tires | 1690mm | 1702mm | 1713mm | 1718mm | 1738mm |
Stem Length | 80mm | 90mm | 100mm | 110mm | 120mm |
Published Sizing Recommendations
Height | — | 165 cm to 175 cm | 10 cm to 180 cm | 175 cm to 185 cm | 180 cm to |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
All-road/GravelSource:https://www.chapter2bikes.com/geometry-bikefit