2004 Cannondale Optimo Si Base 54
Build
700C/29 in × 25 mm
Insights
Somewhat upright stack and reach vs trend of performance road bikes
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 535mm |
| Reach | 370mm |
| Stack to Reach Ratio | 1.45:1 |
| Seat Tube Length, C-T | 560mm |
| Top Tube Length, Effective/Horizontal Center | 545mm |
| Top Tube Slope | -0.2deg |
| Head Tube Angle | 73deg |
| Seat Tube Angle | 73.5deg |
| Bottom Bracket Drop | 69mm |
| Bottom Bracket Height | 267mm |
| Chainstay Length | 405mm |
| Chainstay Length Horizontal | 399.1mm |
| Front-Center | 580mm |
| Front-Center Horizontal | 575.9mm |
| Wheelbase | 975mm |
| Fork Offset/Rake | 45mm |
| Trail | 55.7mm mid/neutral |
| Mechanical Trail | 53.2mm |
| Wheel Flop | 15.6mm |
| Standover Height | 785mm |
| Tire to Pedal Spindle Distance With 172.5 mm cranks | 71.5mm |
| Pedal Spindle to Ground Clearance With 172.5 mm cranks | 94.5mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 25mm |
| Tire Outer Diameter | 672mm |
| Bike Length with Tires | 1647mm |
| Crank Length | 172.5mm |
| Handlebar Width | 38cm |
| Stem Length | 100mm |
| Stem Angle | -17deg |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Rim |
Source:https://vintagecannondale.com/year/2004/2004.pdf