2025 Serk Titanium A40 Base XS
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 | 519mm |
| Reach | 366mm |
| Stack to Reach Ratio | 1.42:1 |
| Seat Tube Length, Unknown | 435mm |
| Top Tube Length, Effective/Horizontal Unknown | 505mm |
| Top Tube Slope | 11.7deg |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 75deg |
| Head Tube Length | 90mm |
| Bottom Bracket Drop | 77mm |
| Bottom Bracket Height | 274mm |
| Chainstay Length | 420mm |
| Chainstay Length Horizontal | 412.9mm |
| Front-Center | 573.3mm |
| Front-Center Horizontal | 568.1mm |
| Wheelbase | 981mm |
| Fork Offset/Rake | 47mm |
| Trail | 71.2mm high |
| Mechanical Trail | 67.3mm |
| Wheel Flop | 21.9mm |
| Standover Height | 722mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 52.3mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 104mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 40mm |
| Tire Outer Diameter | 702mm |
| Bike Length with Tires | 1683mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Titanium |
| Fork Material | Carbon/Composite |
| Brake Type | Unknown |
Source:SERK.CC