2026 Robert Frameworks RMB1 GT rigid XL
Build
700C/29 in × 2.4 in
Insights
Somewhat aggressive stack and reach vs trend of hardtail cross-country mtb bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 625mm |
| Reach | 476mm |
| Stack to Reach Ratio | 1.31:1 |
| Seat Tube Length, Unknown | 520mm |
| Top Tube Length, Effective/Horizontal HT Top | 640mm |
| Top Tube Slope | 11.3deg |
| Head Tube Angle | 67deg |
| Seat Tube Angle | 75.5deg |
| Head Tube Length | 130mm |
| Bottom Bracket Drop | 60mm |
| Bottom Bracket Height | 312mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 420.7mm |
| Front-Center | 765.6mm |
| Front-Center Horizontal | 763.3mm |
| Wheelbase | 1184mm |
| Fork Offset/Rake | 43.7mm |
| Fork Length (Axle-To-Crown) | 490mm |
| Trail | 110.5mm very high |
| Mechanical Trail | 101.7mm |
| Wheel Flop | 39.7mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 223.7mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 142mm |
rigid Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.4in |
| Tire Outer Diameter | 743.9mm |
| Bike Length with Tires | 1927.9mm |
| Suspension Type | Rigid, suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Titanium |
| Fork Material | Unknown |
| Brake Type | Unknown |
Source:robert-frameworks.com