2026 Seaboard GR04 Base 53cm
Build
700C/29 in × 40 mm
Insights
Average stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Seaboard GR04
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 583mm |
| Reach | 390mm |
| Stack to Reach Ratio | 1.49:1 |
| Seat Tube Length, C-T | 530mm |
| Top Tube Length, Effective/Horizontal HT Top | 558.5mm |
| Top Tube Slope | 7.8deg |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 160mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 281mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 419.2mm |
| Front-Center | 614mm |
| Front-Center Horizontal | 610mm |
| Wheelbase | 1029.2mm |
| Fork Offset/Rake | 45mm |
| Trail | 66.7mm high |
| Mechanical Trail | 63.5mm |
| Wheel Flop | 19.6mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 93mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 111mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 40mm |
| Tire Outer Diameter | 702mm |
| Bike Length with Tires | 1731.2mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Unknown |
| Fork Material | Unknown |
| Brake Type | Unknown |
Source:https://www.amazon.de/ZFF001/dp/B0G4GVXRP1?th=1