2015 Author Aura 55 Base 50
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 | 557.8mm |
| Reach | 373.8mm |
| Stack to Reach Ratio | 1.49:1 |
| Seat Tube Length, C-T | 500mm |
| Seat Tube Length, C-C | 460mm |
| Top Tube Length, Effective/Horizontal Unknown | 532mm |
| Top Tube Length, Actual C-C | 519mm |
| Head Tube Angle | 71.8deg |
| Seat Tube Angle | 74.2deg |
| Head Tube Length | 140mm |
| Bottom Bracket Drop | 71mm |
| Bottom Bracket Height | 265mm |
| Chainstay Length | 410mm |
| Chainstay Length Horizontal | 403.8mm |
| Front-Center | 585.5mm |
| Front-Center Horizontal | 581.2mm |
| Wheelbase | 985mm |
| Fork Offset/Rake | 45mm |
| Fork Length, Unknown | 370mm |
| Trail | 63.1mm mid/neutral |
| Mechanical Trail | 59.9mm |
| Wheel Flop | 18.7mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 79.5mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 95mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 25mm |
| Tire Outer Diameter | 672mm |
| Bike Length with Tires | 1657mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Rim |
Published Sizing Recommendations
| Height | 160 cm to 170 cm |
Source:https://en.author.eu/author-aura-55-2015-ua42838501