1991 Cannondale Bikes ST1000 Base 21”
Build
700C/29 in × 32 mm
Insights
Very aggressive stack and reach vs trend of sport touring bikes
Design deviates from other sizes of Cannondale Bikes ST1000
Stack and Reach vs. Category Trend
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Geometry
| Stack | 520.4mm |
| Reach | 397.4mm |
| Stack to Reach Ratio | 1.31:1 |
| Seat Tube Length, C-TTT | 533.4mm |
| Seat Tube Length, C-C | 508mm |
| Top Tube Length, Effective/Horizontal Center | 552.5mm |
| Top Tube Length, Actual C-C | 552.4mm |
| Top Tube Slope | 0deg |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 73.5deg |
| Bottom Bracket Drop | 81.4mm |
| Bottom Bracket Height | 261.6mm |
| Chainstay Length | 457.2mm |
| Chainstay Length Horizontal | 449.9mm |
| Front-Center | 604.6mm |
| Front-Center Horizontal | 599.1mm |
| Wheelbase | 1049mm |
| Fork Offset/Rake | 54.1mm |
| Trail | 54.6mm mid/neutral |
| Mechanical Trail | 51.9mm |
| Wheel Flop | 16mm |
| Standover Height | 774.7mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 91.6mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 91.6mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 32mm |
| Tire Outer Diameter | 686mm |
| Bike Length with Tires | 1735mm |
| Stem Angle | -72deg |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Steel |
| Brake Type | Rim |
Source:https://vintagecannondale.com/year/1991/1991.pdf