2026 Speedclan STIFFAF II Base XS
Build
700C/29 in × 28 mm
Insights
Average stack and reach vs trend of performance road bikes
Design deviates from other sizes of Speedclan STIFFAF II
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 546mm |
| Reach | 380mm |
| Stack to Reach Ratio | 1.44:1 |
| Seat Tube Length, Unknown | 490mm |
| Top Tube Length, Effective/Horizontal Unknown | 516mm |
| Top Tube Slope | 8.1deg |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 76deg |
| Head Tube Length | 125mm |
| Bottom Bracket Drop | 73mm |
| Bottom Bracket Height | 266mm |
| Chainstay Length | 410mm |
| Chainstay Length Horizontal | 403.5mm |
| Front-Center | 580.2mm |
| Front-Center Horizontal | 575.6mm |
| Wheelbase | 979mm |
| Fork Offset/Rake | 45mm |
| Trail | 62.8mm mid/neutral |
| Mechanical Trail | 59.8mm |
| Wheel Flop | 18.5mm |
| Standover Height | 740mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 71.2mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 96mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 28mm |
| Tire Outer Diameter | 678mm |
| Bike Length with Tires | 1657mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| PBH | 160 cm to 170 cm |
Source:speedclan.cc