2026 TSUNAMI Bicycle GA04 Base M (50)
Build
700C/29 in × 45 mm
Insights
Average stack and reach vs trend of all-road/gravel bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 567mm |
| Reach | 380mm |
| Stack to Reach Ratio | 1.49:1 |
| Seat Tube Length, C-TTT | 500mm |
| Top Tube Length, Effective/Horizontal Unknown | 542mm |
| Top Tube Slope | 7.2deg |
| Head Tube Angle | 71.5deg |
| Seat Tube Angle | 74.5deg |
| Head Tube Length | 145mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 286mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 419.2mm |
| Front-Center | 602.9mm |
| Front-Center Horizontal | 598.8mm |
| Wheelbase | 1018mm |
| Fork Offset/Rake | 49.8mm |
| Trail | 66.6mm high |
| Mechanical Trail | 63.2mm |
| Wheel Flop | 20mm |
| Standover Height | 784mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 76.9mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 116mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 45mm |
| Tire Outer Diameter | 712mm |
| Bike Length with Tires | 1730mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:tsunamibicycle.com