2023 Bisan unique Base 57 cm
Build
700C/29 in × 25 mm
Insights
Very aggressive stack and reach vs trend of endurance road bikes
Design deviates from other sizes of Bisan unique
Stack and Reach vs. Category Trend
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Geometry
| Stack | 558.4mm |
| Reach | 409.5mm |
| Stack to Reach Ratio | 1.36:1 |
| Seat Tube Length, Unknown | 570mm |
| Top Tube Length, Effective/Horizontal Unknown | 580mm |
| Top Tube Slope | 1.3deg |
| Head Tube Angle | 72.5deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 150mm |
| Bottom Bracket Drop | 68mm |
| Bottom Bracket Height | 268mm |
| Chainstay Length | 408mm |
| Chainstay Length Horizontal | 402.3mm |
| Front-Center | 619.8mm |
| Front-Center Horizontal | 616mm |
| Wheelbase | 1018.3mm |
| Fork Offset/Rake | 49.5mm |
| Trail | 54.1mm mid/neutral |
| Mechanical Trail | 51.6mm |
| Wheel Flop | 15.5mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 113.8mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 98mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 25mm |
| Tire Outer Diameter | 672mm |
| Bike Length with Tires | 1690.3mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://bisan.com.tr/unique-ultegra-di2/