2021 Co-Op Cycles ADV 4.2 Base S
Build
650B/27.5 in × 2.8 in
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 587.1mm |
| Reach | 406mm |
| Stack to Reach Ratio | 1.45:1 |
| Seat Tube Length, C-T | 370mm |
| Top Tube Length, Effective/Horizontal Center | 580mm |
| Top Tube Slope | 24.4deg |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 73deg |
| Bottom Bracket Drop | 55mm |
| Bottom Bracket Height | 308.1mm |
| Chainstay Length | 455mm |
| Chainstay Length Horizontal | 451.7mm |
| Front-Center | 644.4mm |
| Front-Center Horizontal | 642mm |
| Wheelbase | 1093.7mm |
| Fork Offset/Rake | 50mm |
| Trail | 72.2mm high |
| Mechanical Trail | 68.2mm |
| Wheel Flop | 22.2mm |
| Standover Height | 708.6mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 111.3mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 138.1mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.8in |
| Tire Outer Diameter | 726.2mm |
| Bike Length with Tires | 1819.9mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Aluminum |
| Fork Material | Aluminum |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 5 ft 3 in to 5 ft 6 in |
Source:https://www.rei.com/product/122461/co-op-cycles-adv-42-bike (BB Drop and HT Length from REI Support)