2019 Author Aura 55 Base 54cm
Build
700C/29 in × 28 mm
Insights
Somewhat upright stack and reach vs trend of performance road bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 585.1mm |
| Reach | 384.3mm |
| Stack to Reach Ratio | 1.52:1 |
| Seat Tube Length, C-T | 540mm |
| Seat Tube Length, C-C | 500mm |
| Top Tube Length, Effective/Horizontal HT Top | 556mm |
| Top Tube Length, Actual C-C | 543mm |
| Head Tube Angle | 72.5deg |
| Seat Tube Angle | 73.7deg |
| Head Tube Length | 160mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 269mm |
| Chainstay Length | 420mm |
| Chainstay Length Horizontal | 414.1mm |
| Front-Center | 598mm |
| Front-Center Horizontal | 593.9mm |
| Wheelbase | 1008mm |
| Fork Offset/Rake | 45mm |
| Fork Length (Axle-To-Crown) | 377mm |
| Trail | 59.7mm mid/neutral |
| Mechanical Trail | 56.9mm |
| Wheel Flop | 17.1mm |
| Tire to Pedal Spindle Distance With 175 mm cranks | 84mm |
| Pedal Spindle to Ground Clearance With 175 mm cranks | 94mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 28mm |
| Tire Outer Diameter | 678mm |
| Bike Length with Tires | 1686mm |
| Crank Length | 175mm |
| Handlebar Width | 440mm |
| Stem Length | 110mm |
| 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