2025 Cannondale Bikes Topstone Carbon 1 Lefty 51
Build
700C/29 in × 45 mm
Insights
Average stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Cannondale Bikes Topstone Carbon
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 561mm |
| Reach | 373mm |
| Stack to Reach Ratio | 1.5:1 |
| Seat Tube Length, C-T | 446mm |
| Top Tube Length, Effective/Horizontal Center | 543mm |
| Top Tube Length, Actual C-C | 520mm |
| Top Tube Slope | 14.5deg |
| Head Tube Angle | 70.7deg |
| Seat Tube Angle | 73.1deg |
| Head Tube Length | 101mm |
| Bottom Bracket Drop | 79mm |
| Bottom Bracket Height | 277mm |
| Chainstay Length | 420mm |
| Chainstay Length Horizontal | 412.5mm |
| Front-Center | 605mm |
| Front-Center Horizontal | 599.5mm |
| Wheelbase | 1012mm |
| Fork Offset/Rake | 55mm |
| Fork Length (Axle-To-Crown) | 429mm |
| Trail | 66.4mm high |
| Mechanical Trail | 62.7mm |
| Wheel Flop | 20.7mm |
| Standover Height | 741mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 79mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 107mm |
1 Lefty Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 45mm |
| Tire Outer Diameter | 712mm |
| Bike Length with Tires | 1724mm |
| Stem Angle | -6deg |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Drop Bar |
| Fork Travel | 40mm |
| Suspension Sag | Unknown |
| Frame Material | Carbon/Composite |
| Fork Material | N/A |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 165 cm to 175 cm |
Source:https://www.cannondale.com/en-eu/bikes/road/gravel/topstone-carbon/topstone-carbon-1-lefty-axs