2025 OPEN Cycle U.P. Base M
Build
700C/29 in × 40 mm
Insights
Average stack and reach vs trend of all-road/gravel bikes
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 551mm |
| Reach | 376mm |
| Stack to Reach Ratio | 1.47:1 |
| Seat Tube Length, C-TTT | 540mm |
| Top Tube Length, Effective/Horizontal HT Top | 549mm |
| Top Tube Slope | 1.8deg |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 72.5deg |
| Head Tube Length | 130mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 281mm |
| Chainstay Length | 420mm |
| Chainstay Length Horizontal | 414.1mm |
| Front-Center | 598mm |
| Front-Center Horizontal | 593.9mm |
| Wheelbase | 1008mm |
| Fork Offset/Rake | 50mm |
| Trail | 68mm high |
| Mechanical Trail | 64.3mm |
| Wheel Flop | 20.9mm |
| Standover Height | 767mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 77mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 111mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 40mm |
| Tire Outer Diameter | 702mm |
| Bike Length with Tires | 1710mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 5 ft 7 in to 5 ft 11 in |
Source:https://opencycle.com/eu-en/upper-20