2025 Serk Titanium A40 Base XXL
Build
700C/29 in × 40 mm
Insights
Average stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Serk Titanium A40
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 638mm |
| Reach | 406mm |
| Stack to Reach Ratio | 1.57:1 |
| Seat Tube Length, Unknown | 585mm |
| Top Tube Length, Effective/Horizontal Unknown | 601mm |
| Top Tube Slope | 7.8deg |
| Head Tube Angle | 71.5deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 218mm |
| Bottom Bracket Drop | 73mm |
| Bottom Bracket Height | 278mm |
| Chainstay Length | 420mm |
| Chainstay Length Horizontal | 413.6mm |
| Front-Center | 648.5mm |
| Front-Center Horizontal | 644.4mm |
| Wheelbase | 1058mm |
| Fork Offset/Rake | 47mm |
| Trail | 67.9mm high |
| Mechanical Trail | 64.4mm |
| Wheel Flop | 20.4mm |
| Standover Height | 855mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 127.5mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 108mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 40mm |
| Tire Outer Diameter | 702mm |
| Bike Length with Tires | 1760mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Titanium |
| Fork Material | Carbon/Composite |
| Brake Type | Unknown |
Source:SERK.CC