2026 Atelier Olympia Mondial Base 51
Build
650B/27.5 in × 2.25 in
Insights
Somewhat aggressive stack and reach vs trend of off-road touring bikes
Design deviates from other sizes of Atelier Olympia Mondial
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 548mm |
| Reach | 372mm |
| Stack to Reach Ratio | 1.47:1 |
| Seat Tube Length, Effective HT Top | 510mm |
| Top Tube Length, Effective/Horizontal Center | 525mm |
| Top Tube Length, Actual C-C | 514.5mm |
| Top Tube Slope | 5deg |
| Head Tube Angle | 70.5deg |
| Seat Tube Angle | 74.5deg |
| Head Tube Length | 115mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 279.2mm |
| Chainstay Length | 430mm |
| Chainstay Length Horizontal | 424.3mm |
| Front-Center | 598mm |
| Front-Center Horizontal | 593.9mm |
| Wheelbase | 1018.2mm |
| Fork Offset/Rake | 50mm |
| Trail | 70.6mm high |
| Mechanical Trail | 66.6mm |
| Wheel Flop | 22.2mm |
| Standover Height | 25.2mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 78.9mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 109.2mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.25in |
| Tire Outer Diameter | 698.3mm |
| Bike Length with Tires | 1716.5mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 170 cm to 175 cm |
Source:https://www.atelierolympia.com/products/mondial-frameset