Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Carbon -
Wheels 700c -
Groupset GRX 800 -
Suspension Rigid -
Drivetrain 1 × 11 -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
52cm
158cm - 170cm
54cm
168cm - 177cm
56cm
175cm - 185cm
58cm
183cm - 190cm
60cm
188cm - 198cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
VIATHON G.1 GRAVEL FRAME
Suspension Fork
VIATHON G.1 GRAVEL FORK
Drivetrain
Rear Derailleur
SHIMANO GRX 800 RD-RX812, 11-SPEED, SHADOW
Front Derailleur
N/A
Shift Levers
SHIMANO GRX 800 BR-RX810, DISC BRAKE
Cassette
SHIMANO XT CS-M8000, 11-SPEED, 11-42T
Crank
SHIMANO GRX 800 FC-RX810-1, HOLLOWTECH 2, 42T
Bottom Bracket
SHIMANO SM-BBR60
Chain
SHIMANO CN-HG701-11, 11-SPEED
Wheels
Rims
MERCURY G1C DISC, CENTER LOCK, SHIMANO 11-SPEED
Tires
IRC BOKEN, 700 X 40, FOLDING
Brakes
Brake Levers
SHIMANO GRX 800 BR-RX810, DISC BRAKE
Disk Rotors
SHIMANO SM-RT800, 160MM, W/LOCK RING
Cockpit
Stem
ZIPP SERVICE COURSE SL B1 31.8MM, 6°, 110MM
Handlebar
ZIPP SERVICE COURSE SL-70
Headset
FSA
Seat
Saddle
SELLE ITALIA NOVUS BOOST MAG
Seatpost
ZIPP SERVICE COURSE SL C1, 27.2MM, 400MM
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | 52cm | 54cm | 56cm | 58cm | 60cm |
|---|---|---|---|---|---|
| Stack Reach Ratio | 1.44 mm | 1.48 mm | 1.5 mm | 1.52 mm | 1.5 mm |
| Bottom Bracket Height | 280 mm | 280 mm | 280 mm | 280 mm | 280 mm |
| Front Center | 598 mm | 604 mm | 609 mm | 613 mm | 634 mm |
| Rake | 48 mm | 48 mm | 48 mm | 48 mm | 48 mm |
| Trail | 68.4 mm | 65.2 mm | 61.9 mm | 58.8 mm | 58.8 mm |
| Stack | 546 mm | 566.8 mm | 583 mm | 599.2 mm | 613.5 mm |
| Reach | 379.9 mm | 383.8 mm | 388.6 mm | 393.1 mm | 409 mm |
| Top Tube Length | 531 mm | 546 mm | 561 mm | 576 mm | 596 mm |
| Seat Tube Angle | 74.5 ° | 74 ° | 73.5 ° | 73 ° | 73 ° |
| Seat Tube Length | 520 mm | 540 mm | 560 mm | 580 mm | 600 mm |
| Head Tube Angle | 71 ° | 71.5 ° | 72 ° | 72.5 ° | 72.5 ° |
| Head Tube Length | 125 mm | 145 mm | 160 mm | 175 mm | 190 mm |
| Chainstay Length | 426 mm | 426 mm | 426 mm | 426 mm | 426 mm |
| Wheelbase | 1014 mm | 1020 mm | 1025 mm | 1030 mm | 1050 mm |
| Bottom Bracket Drop | 69 mm | 69 mm | 69 mm | 69 mm | 69 mm |
| Wheels | 700 | 700 | 700 | 700 | 700 |
| Rider Min Height | 158 cm | 168 cm | 175 cm | 183 cm | 188 cm |
| Rider Max Height | 170 cm | 177 cm | 185 cm | 190 cm | 198 cm |
Model Overview
G.1 GRX 800 belongs to the Viathon G1 model. 12 bikes variations carry this model name so far. You can get a glimpse at all models from 2020, by clicking on this link.
Model range prices
Viathon G.1 GRX 600 2020 is the most economical model, with a starting price of 2298$. Viathon G.1 Red eTap AXS 2020 on the other hand costs 6998$, and is the most expensive model.
Safety
When cycling always take safety very seriously. Wear a helmet, obey the traffic rules and wear hi-vis clothes. In short, take care of yourself so others can take care of you.
Average price for Gravel bikes
Our math shows that the average cost of a dependable Gravel bike is 2462$. However, even though the average price of a Gravel bike is lower, you might still be able to get a top-quality bike. To sum up, when you purchase your bike, make sure to check if it has reviews, and also do some components research.
Furthermore, this bike was made available in 2020 for 2998$. Comparing this to the average Gravel bike price, we see that the price is 21.77% higher.
G.1 GRX 800 components
Fork material
The fork is made out of carbon, so, it’s a great addition to the bike’s value. However, carbon forks should be regularly inspected for damage because even the smallest crack could cause the fork to fall apart.
Wheels size
As for the wheels, Viathon G.1 GRX 800 2020, has a 700c aluminum model. These are the most popular wheels for road, aero, gravel, cyclocross, race, and gravel bikes. However, while they give you great speed and control, these wheels are not so bump-friendly.
Brakes
Nothing is more important on a bike than its ability to brake properly. Viathon G.1 GRX 800 is equipped with Hydraulic Disc brakes. With Hydraulic Disc brakes, you’ll be able to stop on a dime, even in wet or icy conditions. To sum up, your safety is in good hands.
Sizes
Viathon G.1 GRX 800 bike has 5 sizes, in the range of 158 cm – 198 cm (5.18 ft – 6.5 ft). In conclusion, you won’t have a problem finding one that suits you.