2019 Viathon Bicycles G.1 Base (700c)
- Category
- All-road/Gravel
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Carbon/Composite
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
520 | 540 | 560 | 580 | 600 | |
Stack | 545mm | 565.8mm | 582mm | 598.2mm | 612.5mm |
Reach | 378.9mm | 382.8mm | 387.6mm | 392.1mm | 408mm |
Stack to Reach Ratio | 1.44:1 | 1.48:1 | 1.5:1 | 1.53:1 | 1.5:1 |
Seat Tube Length, C-T | 520mm | 540mm | 560mm | 580mm | 600mm |
Top Tube Length, Effective/Horizontal HT Top | 530mm | 545mm | 560mm | 575mm | 595mm |
Top Tube Slope | 4.9deg | 5deg | 4.7deg | 4.4deg | 3.8deg |
Head Tube Angle | 71deg | 71.5deg | 72deg | 72.5deg | 72.5deg |
Seat Tube Angle | 74.5deg | 74deg | 73.5deg | 73deg | 73deg |
Head Tube Length | 125mm | 145mm | 160mm | 175mm | 190mm |
Bottom Bracket Drop | 69mm | 69mm | 69mm | 69mm | 69mm |
Bottom Bracket Height | 277mm | 277mm | 277mm | 277mm | 277mm |
Chainstay Length | 425mm | 425mm | 425mm | 425mm | 425mm |
Chainstay Length Horizontal | 419.4mm | 419.4mm | 419.4mm | 419.4mm | 419.4mm |
Front-Center | 598mm | 604mm | 609mm | 613mm | 634mm |
Front-Center Horizontal | 593.6mm | 599.6mm | 604.6mm | 609.6mm | 629.6mm |
Wheelbase | 1013mm | 1019mm | 1024mm | 1029mm | 1049mm |
Fork Offset/Rake | 48mm | 48mm | 48mm | 48mm | 48mm |
Fork Length, Unknown | 394mm | 394mm | 394mm | 394mm | 394mm |
Trail | 68.4mm high | 65.2mm high | 62mm mid/neutral | 58.8mm mid/neutral | 58.8mm mid/neutral |
Mechanical Trail | 64.7mm | 61.8mm | 58.9mm | 56mm | 56mm |
Wheel Flop | 21.1mm | 19.6mm | 18.2mm | 16.9mm | 16.9mm |
Tire to Pedal Spindle | 82mm 170 mm cranks | 88mm 170 mm cranks | 93mm 170 mm cranks | 97mm 170 mm cranks | 118mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 107mm 170 mm cranks | 107mm 170 mm cranks | 107mm 170 mm cranks | 107mm 170 mm cranks | 107mm 170 mm cranks |
Base (700c) Build
520 | 540 | 560 | 580 | 600 | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 35mm | 35mm | 35mm | 35mm | 35mm |
Tire Width Max | 51mm | 51mm | 51mm | 51mm | 51mm |
Tire Outer Diameter | 692mm | 692mm | 692mm | 692mm | 692mm |
Bike Length with Tires | 1705mm | 1711mm | 1716mm | 1721mm | 1741mm |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
All-road/GravelSource:https://www.viathonbicycles.com/products/g1-105