Viathon Bicycles (United States) - The new 2020 Viathon models have arrived. With updated spec and color options, these bikes are ready for your next adventure. This year the G.1 Gravel Bike lineup includes two new models featuring the new Shimano GRX 800 and 600 gravel-specific groupset and IRC Boken 40c tires.

R.1 | Dura-Ace:

The award-winning R.1 Dura-Ace gets an updated spec with carbon HED Vanquish 4GP wheels and a ZIPP carbon cockpit. It comes with a complete Dura-Ace gruppo, including the chain and disc brakes. With a fully loaded spec and beautiful carbon frame and fork, the R.1 Dura-Ace doesn’t take any shortcuts, but that doesn’t mean you can’t.

Key Features:

• 870-gram size 54 frame, with derailleur and water bottle mounting hardware
• Oversize tapered head tube and bottom bracket for precise handling and pedaling efficiency
• Pro-level performance at a fraction of the cost

Additional Features:

• Shimano Dura-Ace, the benchmark in shifting speed and accuracy
• HED Vanquish 4GP carbon wheels for winning aerodynamics
• Internal cable routings reduce aerodynamic drag
• Zipp SL carbon handlebar for steering precision and seatpost for comfort
• Clearance for 28mm tires

Specs:

• Frame Viathon R.1 Road Frame
• Fork Viathon R.1 Road Fork
• Headset Fsa
• Rear Derailleur Shimano Dura-Ace Rd-R9100, 11-Speed, Shadow
• Front Derailleur Shimano Dura-Ace Fd-R9100, Down-Swing, Brazed-On Type
• Shift/Brake Levers Shimano Dura-Ace St-R9120, Disc Brake
• Rotor Shimano Sm-Rt900, 160mm, W/Lock Ring
• Bottom Bracket Rotor Press Fit 30to24 Converter
• Crankset Shimano Dura-Ace Fc-R9100, Hollowtech2, 50-34t
• Cassette Shimano Dura-Ace Cs-R9100, 11-Speed, 11-30
• Chain Shimano Cn-Hg901, 11-Speed
• Front Axle Shimano E-Thru Axle 100x12mm
• Rear Axle Shimano E-Thru Axle 142x12mm
• Wheels Hed Vanquish 4gp Carbon Disc
• Tires Continental Grand Prix 5000 Tl 700 X 25 Black + Black Chili
• Inner Tubes Kenda 23/25c
• Handle Bar Zipp Sl-70 Ergo Carbon
• Bar Tape Fizik White
• Stem Zipp Service Course Sl B1, 31.8mm, 6°, 110mm
• Seat Post Zipp Sl Carbon B1, 0 Offset, 27.2mm, 330mm
• Saddle Fizik Antares R1