KOGA F3 6.0 vs Viathon R.1 Dura-Ace

Compare Specifications of KOGA F3 6.0 and Viathon R.1 Dura-Ace

Selected Bikes

KOGA F3 6.0
KOGA F3 6.0

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Viathon R.1 Dura-Ace
Viathon R.1 Dura-Ace

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Technical Specifications
Frame -- VIATHON R.1 ROAD FRAME
Stem KOGA adjustable ZIPP SERVICE COURSE SL B1, 31.8MM, 6°, 110 MM
Handle Bar KOGA ZIPP SL-70 ERGO CARBON
Fork KOGA Feathershock VIATHON R.1 ROAD FORK
Seatpost KOGA ZIPP SL CARBON B1, 0 OFFSET, 27.2 MM, 330 MM
Crankset Gates SHIMANO DURA-ACE FC-R9100, HOLLOWTECH2, 50-34T
Chain -- SHIMANO CN-HG901, 11-SPEED
Shifters Shimano Alfine SHIMANO DURA-ACE ST-R9120, DISC BRAKE
Gear 11 --
Saddle KOGA FIZIK ANTARES R1
Derailleur Front -- SHIMANO DURA-ACE FD-R9100, DOWN-SWING, BRAZED-ON TYPE
Derailleur Rear -- SHIMANO DURA-ACE RD-R9100, 11-SPEED, SHADOW
Hub Rear Shimano DH-3D37 --
Cassette Gates CDX 24T SHIMANO DURA-ACE CS-R9100, 11-SPEED, 11-30
Bottom Bracket Eccentric bottom bracket ROTOR PRESS FIT 30TO24 CONVERTER
Tyres
Front Schwalbe Anti-puncture tires, Marathon Racer CONTINENTAL GRAND PRIX 5000 TL 700 X 25 BLACK + BLACK CHILI
Rear Schwalbe Anti-puncture tires, Marathon Racer CONTINENTAL GRAND PRIX 5000 TL 700 X 25 BLACK + BLACK CHILI
Wheel / RIM -- HED VANQUISH 4GP CARBON DISC
Brakes
Front Shimano Hydraulic disc brake, MT201 SHIMANO SM-RT900, 160 MM, W/LOCK RING
Rear Shimano Hydraulic disc brake, MT201 SHIMANO SM-RT900, 160 MM, W/LOCK RING
Brake Lever -- SHIMANO DURA-ACE ST-R9120, DISC BRAKE
Suspension
Front -- --
Rear -- --
Colors Available
Colors Off Black High Gloss Copper
Silver


Physical Specs
Length -- --
Weight 15.2 kg --
Overview
Features - Smooth Welds
- Cable Integration
- F3 : Rear Carrier
- SoleMate
- Hub Dynamo
- Crown Connect
- 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
Additional Details Frame sizes men's model : 50, 54, 57, 60, 63
Front light : B&M Eyc 50 Lux
Luggage rack : Racktime frame integrated with SnapIt
Standard : One-legged standard
Sizes : 52, 54, 56, 57.5, 59
Front Axle : SHIMANO E-THRU AXLE 100X12MM
Rear Axle : SHIMANO E-THRU AXLE 142X12MM
Inner Tubes : KENDA 23/25C
Bar Tape : FIZIK WHITE

Which one do you think is better? And why?
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