2019 Author Aura 55 Base 50cm
Build
700C/29 in × 28 mm
Insights
Somewhat upright stack and reach vs trend of performance road bikes
Design deviates from other sizes of Author Aura 55
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 545.5mm |
| Reach | 376.7mm |
| Stack to Reach Ratio | 1.45:1 |
| Seat Tube Length, C-T | 500mm |
| Seat Tube Length, C-C | 460mm |
| Top Tube Length, Effective/Horizontal HT Top | 532mm |
| Top Tube Length, Actual C-C | 520mm |
| Head Tube Angle | 71.8deg |
| Seat Tube Angle | 74.2deg |
| Head Tube Length | 120mm |
| Bottom Bracket Drop | 71mm |
| Bottom Bracket Height | 268mm |
| Chainstay Length | 420mm |
| Chainstay Length Horizontal | 414mm |
| Front-Center | 584.4mm |
| Front-Center Horizontal | 580mm |
| Wheelbase | 994mm |
| Fork Offset/Rake | 45mm |
| Fork Length (Axle-To-Crown) | 377mm |
| Trail | 64.1mm mid/neutral |
| Mechanical Trail | 60.9mm |
| Wheel Flop | 19mm |
| Tire to Pedal Spindle Distance With 172 mm cranks | 73.4mm |
| Pedal Spindle to Ground Clearance With 172 mm cranks | 96mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 28mm |
| Tire Outer Diameter | 678mm |
| Bike Length with Tires | 1672mm |
| Crank Length | 172mm |
| Handlebar Width | 420mm |
| Stem Length | 90mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Rim |
Source:https://en.author.eu/road/bike-models/author-aura-55-2020-ua42929611#!geometrie-modelu