2015 Author Aura 55 Base 52
Build
700C/29 in × 25 mm
Insights
Average stack and reach vs trend of endurance road bikes
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 572.5mm |
| Reach | 377.4mm |
| Stack to Reach Ratio | 1.52:1 |
| Seat Tube Length, C-T | 520mm |
| Seat Tube Length, C-C | 480mm |
| Top Tube Length, Effective/Horizontal Unknown | 542mm |
| Top Tube Length, Actual C-C | 529mm |
| Head Tube Angle | 72.2deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 155mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 266mm |
| Chainstay Length | 410mm |
| Chainstay Length Horizontal | 404mm |
| Front-Center | 590.2mm |
| Front-Center Horizontal | 586mm |
| Wheelbase | 990mm |
| Fork Offset/Rake | 45mm |
| Fork Length, Unknown | 370mm |
| Trail | 60.6mm mid/neutral |
| Mechanical Trail | 57.7mm |
| Wheel Flop | 17.6mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 84.2mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 96mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 25mm |
| Tire Outer Diameter | 672mm |
| Bike Length with Tires | 1662mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Rim |
Published Sizing Recommendations
| Height | 168 cm to 178 cm |
Source:https://en.author.eu/author-aura-55-2015-ua42838501