2023 REI Coop ADV 3.1 Base S
Build
650B/27.5 in × 50 mm
Insights
Design deviates from other sizes of REI Coop ADV 3.1
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 536.7mm |
| Reach | 371.1mm |
| Stack to Reach Ratio | 1.45:1 |
| Seat Tube Length, C-T | 430mm |
| Top Tube Length, Effective/Horizontal Center | 525mm |
| Top Tube Slope | 14.1deg |
| Head Tube Angle | 70deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 127mm |
| Chainstay Length | 445mm |
| Wheelbase | 1049mm |
| Fork Offset/Rake | 55mm |
| Trail | 66mm high |
| Mechanical Trail | 62mm |
| Wheel Flop | 21.2mm |
| Standover Height | 738.4mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | — |
| Pedal Spindle to Ground Clearance With 170 mm cranks | — |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 50mm |
| Tire Outer Diameter | 684mm |
| Bike Length with Tires | 1733mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 4 ft 5 in to |
Source:https://www.rei.com/product/180598/co-op-cycles-adv-31-bike