2025 kona ouroboros Base
- Category
- Progressive Gravel
- Design
- Drop Bar, Rigid, suspension corrected
Geometry
48 | 50 | 52 | 54 | 56 | 58 | |
Stack | 560mm | 575mm | 590mm | 610mm | 630mm | 660mm |
Reach | 380mm | 385mm | 390mm | 395mm | 400mm | 405mm |
Stack to Reach Ratio | 1.47:1 | 1.49:1 | 1.51:1 | 1.54:1 | 1.58:1 | 1.63:1 |
Seat Tube Length, C-TTT | 410mm | 410mm | 455mm | 455mm | 500mm | 535mm |
Top Tube Length, Effective/Horizontal Center | 530mm | 544mm | 559mm | 576mm | 593mm | 613mm |
Top Tube Slope | 16.4deg | 17.8deg | 14.4deg | 16.3deg | 13.5deg | 12.9deg |
Head Tube Angle | 69.5deg | 69.5deg | 69.5deg | 69.5deg | 69.5deg | 69.5deg |
Seat Tube Angle | 75deg | 74.5deg | 74deg | 73.5deg | 73deg | 72.5deg |
Head Tube Length | 115mm | 131mm | 147mm | 172mm | 193mm | 225mm |
Bottom Bracket Drop | 75mm | 75mm | 75mm | 72mm | 72mm | 72mm |
Bottom Bracket Height | 286mm | 286mm | 286mm | 289mm | 289mm | 289mm |
Chainstay Length Horizontal | 445mm | 445mm | 445mm | 445mm | 445mm | 445mm |
Front-Center | 625mm | 635mm | 646mm | 659mm | 671mm | 687mm |
Front-Center Horizontal | 614mm | 624mm | 635mm | 649mm | 661mm | 678mm |
Wheelbase | 1059mm | 1069mm | 1080mm | 1094mm | 1106mm | 1123mm |
Fork Offset/Rake | 55mm | 55mm | 55mm | 55mm | 55mm | 55mm |
Fork Length (Axle-To-Crown) | 420mm | 420mm | 420mm | 420mm | 420mm | 420mm |
Trail | 76.3mm high | 76.3mm high | 76.3mm high | 76.3mm high | 76.3mm high | 76.3mm high |
Mechanical Trail | 71.4mm | 71.4mm | 71.4mm | 71.4mm | 71.4mm | 71.4mm |
Wheel Flop | 25mm | 25mm | 25mm | 25mm | 25mm | 25mm |
Tire to Pedal Spindle | 94mm 170 mm cranks | 104mm 170 mm cranks | 115mm 170 mm cranks | 128mm 170 mm cranks | 140mm 170 mm cranks | 156mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 116mm 170 mm cranks | 116mm 170 mm cranks | 116mm 170 mm cranks | 119mm 170 mm cranks | 119mm 170 mm cranks | 119mm 170 mm cranks |
Base Build
48 | 50 | 52 | 54 | 56 | 58 | |
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 | 700C/29 in 622 mm BSD |
Tire Width | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm |
Tire Outer Diameter | 722mm | 722mm | 722mm | 722mm | 722mm | 722mm |
Bike Length with Tires | 1781mm | 1791mm | 1802mm | 1816mm | 1828mm | 1845mm |
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
Progressive GravelSource:https://www.konaworld.com/pages/kona-ouroboros