2015 Author Aura 55 Base 56
Build
700C/29 in × 25 mm
Insights
Average stack and reach vs trend of endurance road bikes
Design deviates from other sizes of Author Aura 55
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 602.4mm |
| Reach | 389.6mm |
| Stack to Reach Ratio | 1.55:1 |
| Seat Tube Length, C-T | 560mm |
| Seat Tube Length, C-C | 520mm |
| Top Tube Length, Effective/Horizontal Unknown | 570mm |
| Top Tube Length, Actual C-C | 556mm |
| Head Tube Angle | 72.8deg |
| Seat Tube Angle | 73.3deg |
| Head Tube Length | 185mm |
| Bottom Bracket Drop | 69mm |
| Bottom Bracket Height | 267mm |
| Chainstay Length | 410mm |
| Chainstay Length Horizontal | 404.2mm |
| Front-Center | 605.8mm |
| Front-Center Horizontal | 601.9mm |
| Wheelbase | 1006mm |
| Fork Offset/Rake | 45mm |
| Fork Length, Unknown | 370mm |
| Trail | 56.9mm mid/neutral |
| Mechanical Trail | 54.4mm |
| Wheel Flop | 16.1mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 99.8mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 97mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 25mm |
| Tire Outer Diameter | 672mm |
| Bike Length with Tires | 1678mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Rim |
Published Sizing Recommendations
| Height | 186 cm to 195 cm |
Source:https://en.author.eu/author-aura-55-2015-ua42838501