2021 Cannondale Bikes F-Si Carbon 4 SM
Build
700C/29 in × 2.25 in
Insights
Average stack and reach vs trend of hardtail cross-country mtb bikes
Design deviates from other sizes of Cannondale Bikes F-Si
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 602mm |
| Reach | 400mm |
| Stack to Reach Ratio | 1.51:1 |
| Seat Tube Length, C-T | 380mm |
| Top Tube Length, Effective/Horizontal HT Top | 583mm |
| Top Tube Slope | 25deg |
| Head Tube Angle | 69deg |
| Seat Tube Angle | 73.1deg |
| Head Tube Length | 90mm |
| Bottom Bracket Drop | 62mm |
| Bottom Bracket Height | 306.2mm |
| Chainstay Length | 427mm |
| Chainstay Length Horizontal | 422.5mm |
| Front-Center | 667mm |
| Front-Center Horizontal | 663.5mm |
| Wheelbase | 1086mm |
| Fork Offset/Rake | 55mm |
| Trail | 82.4mm very high |
| Mechanical Trail | 76.9mm |
| Wheel Flop | 27.6mm |
| Standover Height | 755mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 128.9mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 136.2mm |
Carbon 4 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.25in |
| Tire Outer Diameter | 736.3mm |
| Bike Length with Tires | 1822.3mm |
| Handlebar Width | 760mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 100mm |
| Suspension Sag | Unknown |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 157 cm to 165 cm |
Source:https://www.cannondale.com/pt-br/bikes/mountain/cross-country/f-si/f-si-carbon-4