2026 ROSE Bikes Backroad GRX 820 XL
Build
700C/29 in × 45 mm
Insights
Very aggressive stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of ROSE Bikes Backroad
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 624.3mm |
| Reach | 430.2mm |
| Stack to Reach Ratio | 1.45:1 |
| Seat Tube Length, C-T | 556mm |
| Top Tube Length, Effective/Horizontal HT Top | 615mm |
| Top Tube Slope | 8.8deg |
| Head Tube Angle | 71.5deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 182mm |
| Bottom Bracket Drop | 78mm |
| Bottom Bracket Height | 278mm |
| Chainstay Length | 430mm |
| Chainstay Length Horizontal | 422.9mm |
| Front-Center | 668.2mm |
| Front-Center Horizontal | 663.6mm |
| Wheelbase | 1086.5mm |
| Fork Offset/Rake | 48mm |
| Fork Length (Axle-To-Crown) | 410mm |
| Trail | 68.5mm high |
| Mechanical Trail | 65mm |
| Wheel Flop | 20.6mm |
| Standover Height | 856mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 142.2mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 108mm |
GRX 820 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 45mm |
| Tire Outer Diameter | 712mm |
| Bike Length with Tires | 1798.5mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://www.rosebikes.com/p/rose-backroad-grx-820-2725742