2026 Argon 18 Equation Base S 51-53
Build
700C/29 in × 28 mm
Insights
Average stack and reach vs trend of endurance road bikes
Design deviates from other sizes of Argon 18 Equation
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 558mm |
| Reach | 379mm |
| Stack to Reach Ratio | 1.47:1 |
| Seat Tube Length, C-T | 485mm |
| Top Tube Length, Effective/Horizontal HT Top | 537mm |
| Top Tube Slope | 10.1deg |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 74.3deg |
| Head Tube Length | 120mm |
| Bottom Bracket Drop | 78mm |
| Bottom Bracket Height | 261mm |
| Chainstay Length | 420mm |
| Chainstay Length Horizontal | 412.7mm |
| Front-Center | 589.5mm |
| Front-Center Horizontal | 584.3mm |
| Wheelbase | 997mm |
| Fork Offset/Rake | 47mm |
| Fork Length (Axle-To-Crown) | 387mm |
| Trail | 60.7mm mid/neutral |
| Mechanical Trail | 57.8mm |
| Wheel Flop | 17.9mm |
| Standover Height | 734mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 80.5mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 91mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 28mm |
| Tire Outer Diameter | 678mm |
| Bike Length with Tires | 1675mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://www.argon18.com/en-ca/bikes/road/equation/equation