2019 Viathon Bicycles R.1 Base 520
Build
700C/29 in × 25 mm
Insights
Average stack and reach vs trend of performance road bikes
Design deviates from other sizes of Viathon Bicycles R.1
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 527mm |
| Reach | 380mm |
| Stack to Reach Ratio | 1.39:1 |
| Seat Tube Length, C-T | 520mm |
| Top Tube Length, Effective/Horizontal HT Top | 534mm |
| Top Tube Slope | 3deg |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 73.7deg |
| Head Tube Length | 124mm |
| Bottom Bracket Drop | 72mm |
| Bottom Bracket Height | 264mm |
| Chainstay Length | 406mm |
| Chainstay Length Horizontal | 399.6mm |
| Front-Center | 578mm |
| Front-Center Horizontal | 573.4mm |
| Wheelbase | 973mm |
| Fork Offset/Rake | 43mm |
| Fork Length, Unknown | 367mm |
| Trail | 64mm mid/neutral |
| Mechanical Trail | 60.8mm |
| Wheel Flop | 18.8mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 72mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 94mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 25mm |
| Tire Outer Diameter | 672mm |
| Bike Length with Tires | 1645mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 158 cm to 170 cm |
Source:https://www.viathonbicycles.com/products/road-bike-r1-105