2025 REI Coop DRT 1.1 Base S
Build
650B/27.5 in × 2.1 in
Insights
Somewhat aggressive stack and reach vs trend of hardtail cross-country mtb bikes
Design deviates from other sizes of REI Coop DRT 1.1
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 580.2mm |
| Reach | 410mm |
| Stack to Reach Ratio | 1.42:1 |
| Seat Tube Length, C-T | 395mm |
| Top Tube Length, Effective/Horizontal Center | 576mm |
| Top Tube Slope | 21.1deg |
| Head Tube Angle | 68.5deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 110mm |
| Bottom Bracket Drop | 50mm |
| Bottom Bracket Height | 295.3mm |
| Chainstay Length | 440mm |
| Chainstay Length Horizontal | 437.2mm |
| Front-Center | 670mm |
| Front-Center Horizontal | 667.9mm |
| Wheelbase | 1105mm |
| Fork Offset/Rake | 46mm |
| Trail | 86.6mm very high |
| Mechanical Trail | 80.6mm |
| Wheel Flop | 29.5mm |
| Standover Height | 677mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 154.7mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 125.3mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.1in |
| Tire Outer Diameter | 690.7mm |
| Bike Length with Tires | 1795.7mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 100mm |
| Suspension Sag | Unknown |
| Frame Material | Aluminum |
| Fork Material | Unknown |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 5 ft 3 in to 5 ft 6 in |
Source:https://www.rei.com/product/215761/co-op-cycles-drt-11-mountain-bike