2020 OPEN Cycle U.P.P.E.R. Base M
Build
650B/27.5 in × 2.1 in
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-T | 540mm |
| Top Tube Length, Effective/Horizontal HT Top | 549mm |
| Top Tube Slope | 3.8deg |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 72.5deg |
| Head Tube Length | 130mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 275.3mm |
| Chainstay Length | 420mm |
| Chainstay Length Horizontal | 414.1mm |
| Front-Center | 598mm |
| Front-Center Horizontal | 593.9mm |
| Wheelbase | 1008mm |
| Fork Offset/Rake | 50mm |
| Trail | 66mm high |
| Mechanical Trail | 62.4mm |
| Wheel Flop | 20.3mm |
| Standover Height | 767mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 82.7mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 105.3mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.1in |
| Tire Outer Diameter | 690.7mm |
| Bike Length with Tires | 1698.7mm |
| 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/UP