2025 Ritchey Design Ascent Base S
Build
700C/29 in × 2.6 in
Insights
Average stack and reach vs trend of off-road touring bikes
Design deviates from other sizes of Ritchey Design Ascent
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 572mm |
| Reach | 370mm |
| Stack to Reach Ratio | 1.55:1 |
| Seat Tube Length, C-T | 430mm |
| Top Tube Length, Effective/Horizontal Unknown | 541mm |
| Top Tube Slope | 18deg |
| Head Tube Angle | 70deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 115mm |
| Bottom Bracket Drop | 68mm |
| Bottom Bracket Height | 309mm |
| Chainstay Length | 463mm |
| Chainstay Length Horizontal | 458mm |
| Front-Center | 612.8mm |
| Front-Center Horizontal | 609mm |
| Wheelbase | 1067mm |
| Fork Offset/Rake | 52mm |
| Fork Length (Axle-To-Crown) | 435mm |
| Trail | 81.9mm very high |
| Mechanical Trail | 77mm |
| Wheel Flop | 26.3mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 65.8mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 139mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.6in |
| Tire Outer Diameter | 754.1mm |
| Bike Length with Tires | 1821.1mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Disc |
Source:https://ritcheylogic.com/bike/frames/ascent-frameset