2024 Ritchey Design Ultra Base 29er, 120mm Fork Large
Build
700C/29 in × 2.6 in
Insights
Average stack and reach vs trend of hardtail cross-country mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 617mm |
| Reach | 445mm |
| Stack to Reach Ratio | 1.39:1 |
| Seat Tube Length, C-T | 475mm |
| Top Tube Length, Effective/Horizontal Unknown | 628mm |
| Top Tube Slope | 15.6deg |
| Head Tube Angle | 68.5deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 110mm |
| Bottom Bracket Drop | 58mm |
| Bottom Bracket Height | 319mm |
| Chainstay Length | 439mm |
| Chainstay Length Horizontal | 435.2mm |
| Front-Center | 722.2mm |
| Front-Center Horizontal | 719.9mm |
| Wheelbase | 1155mm |
| Fork Offset/Rake | 51mm |
| Trail | 93.7mm very high |
| Mechanical Trail | 87.2mm |
| Wheel Flop | 32mm |
| Standover Height | 800mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 175.1mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 149mm |
Base 29er, 120mm Fork Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.6in |
| Tire Outer Diameter | 754.1mm |
| Bike Length with Tires | 1909.1mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 120mm |
| Suspension Sag | Unknown |
| Frame Material | Steel |
| Fork Material | N/A |
| Brake Type | Disc |
Source:https://ritcheylogic.com/bike/frames/ultra-frameset