2026 ROSE Bikes Backroad GRX 820 XS
Build
700C/29 in × 45 mm
Insights
Somewhat 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 | 544.7mm |
| Reach | 384.4mm |
| Stack to Reach Ratio | 1.42:1 |
| Seat Tube Length, C-T | 462mm |
| Top Tube Length, Effective/Horizontal HT Top | 525mm |
| Top Tube Slope | 11deg |
| Head Tube Angle | 70.5deg |
| Seat Tube Angle | 75.5deg |
| Head Tube Length | 102mm |
| Bottom Bracket Drop | 78mm |
| Bottom Bracket Height | 278mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 417.8mm |
| Front-Center | 605.6mm |
| Front-Center Horizontal | 600.6mm |
| Wheelbase | 1018.4mm |
| Fork Offset/Rake | 48mm |
| Fork Length (Axle-To-Crown) | 410mm |
| Trail | 75.2mm high |
| Mechanical Trail | 70.8mm |
| Wheel Flop | 23.7mm |
| Standover Height | 772mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 79.6mm |
| 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 | 1730.4mm |
| 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