Viathon Bicycles (United States) - New for 2020, the Viathon G.1 Gravel lineup includes the addition of the GRX 800 model. Complete with Shimano's new gravel-specific GRX groupset and IRC Boken 40c tires, the new G.1 is built for adventure.

The G.1 has been designed to maintain a sleek riding character while offering a durable ride. Built with a threaded bottom bracket, drop seat stays, internal cable routing, and generous tire clearance, it can handle whatever you want to throw at it. Featuring hydraulic disc brakes, thru-axles, and 40c tires, and the G.1 will keep you pedaling over the next horizon and beyond. 

Versatile and adventurous, the G.1 is ready to go wherever you want to take it. 

G.1 GRX 800:

Key Features:

• 1,010-gram size 54 frame, with derailleur and water bottle mounting hardware
• Clearance for up to 40c tires on 700c or 2.1” on 650B/27.5”
• Asymmetric chain stays allow up to 46T 1x or 50/34T 2x gearing

Additional Features:

• Shimano GRX 800 1X11 drivetrain for simplicity
• Drop seat stays and flattened rear tubing mute road chatter
• Internal cable routings resist dust and grime
• Durable threaded bottom bracket adds serviceability
• Nimble and wide Mercury G1C carbon disc brake wheels for max tire contact
• Zipp handlebars for steering control and comfort
• Mounts for three water bottles
• Front rack, rear rack, and fender mounts