Felt IA FRD Ultimate Dura-Ace Di2 vs Viathon G.1 GRX 800

Compare Specifications of Felt IA FRD Ultimate Dura-Ace Di2 and Viathon G.1 GRX 800

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Felt IA FRD Ultimate Dura-Ace Di2
Felt IA FRD Ultimate Dura-Ace Di2

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Viathon G.1 GRX 800
Viathon G.1 GRX 800

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Technical Specifications
Drivetrain 2x11-speed Shimano GRX 800 1X11 drivetrain
Frame Felt IntegratedAero Disc 1.0 UHC Ultimate + TeXtreme carbon fiber VIATHON G.1 GRAVEL FRAME
Stem Felt Dagger Direct SuperLite aluminum ZIPP SERVICE COURSE SL B1 31.8 MM, 6°, 110 MM
Handle Bar Basebar: Devox Dagger Direct UHC Ultimate + Nano / Extensions: Devox ƒ-Bend | carbon fiber, 3-position ZIPP SERVICE COURSE SL-70
Fork Felt IntegratedAero Disc 1.0 - Dagger UHC Ultimate + TeXtreme carbon fiber VIATHON G.1 GRAVEL FORK
Seatpost Felt Aero TRI IL 1.0 VM | UHC Advanced + TeXtreme carbon fiber ZIPP SERVICE COURSE SL C1, 27.2 MM, 400 MM
Grip Felt Dimpled gel pads, Felt VelvetGel tape, and Felt bar end plugs --
Crankset Shimano Dura-Ace R9100, 52/36T SHIMANO GRX 800 FC-RX810-1, HOLLOWTECH 2, 42T
Chain Shimano Dura-Ace HG901 SHIMANO CN-HG701-11, 11-SPEED
Shifters Basebar: Shimano Dura-Ace Di2 R9180, TRI/TT / Extensions: Shimano Dura-Ace Di2 SW-R9160, TRI/TT SHIMANO GRX 800 BR-RX810, DISC BRAKE
Gear -- 46T 1x or 50/34T 2x gearing
Saddle ISM PS1.0 Ti SELLE ITALIA NOVUS BOOST MAG
Headset IS (IS-2) --
Derailleur Front Shimano Dura-Ace R9150 Di2, braze-on --
Derailleur Rear Shimano Dura-Ace R9150 Di2, short cage SHIMANO GRX 800 RD-RX812, 11-SPEED, SHADOW
Cassette Shimano Dura-Ace R9100, 11-28T SHIMANO XT CS-M8000, 11-SPEED, 11-42T
Bottom Bracket CeramicSpeed BSA for Shimano Road SHIMANO SM-BBR60
Tyres
Front Continental Grand Prix 5000 TL, 700 x 25c IRC BOKEN, 700 X 40, FOLDING
Rear Continental Grand Prix 5000 TL, 700 x 25c IRC BOKEN, 700 X 40, FOLDING
Wheel / RIM ZIPP 454/858 NSW Carbon Tubeless Disc-brake, SRAM/Shimano MERCURY G1C DISC, CENTER LOCK, SHIMANO 11-SPEED
Brakes
Front Disc, Flat Mount 140 mm minimum rotor SHIMANO SM-RT800, 160 MM, W/LOCK RING
Rear Disc, Flat Mount 25 mm thickness, 140 mm minimum rotor SHIMANO SM-RT800, 160 MM, W/LOCK RING
Brake Lever Shimano Dura-Ace R9180, TRI/TT, hydraulic SHIMANO GRX 800 BR-RX810, DISC BRAKE
Suspension
Front -- --
Rear -- --
Colors Available
Colors -- Copper Silver
Silver


Physical Specs
Length -- --
Weight 9.02 kg --
Handlebar Width 420 --
Overview
Features -- - 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
Additional Details Sizes : 5 | 48, 51, 54, 56, 58cm
Derailleur Hanger Type Front : Brazed-On integrated backup plate, non-replaceable, aluminum
Derailleur Hanger Type Rear : Standard Mount | TA 12x142 TRI/TT, horizontal, replaceable, aluminum
Protector Type : Steerer stop integration for head tube protection / Felt ChainPlate for chain suck protection / Clear vinyl for chain slap protection
Head-Tube Type : Felt Aero 1.125"
Routing Type : Semi-Hidden convertible for electronic or mechanical
Brake Calipers : Shimano Dura-Ace R9170, hydraulic disc, flat mount
Sizes : 52, 54, 56, 58, 60
Front Hub Axle : SHIMANO E-THRU AXLE 100X12MM
Rear Axle : SHIMANO E-THRU AXLE 142X12MM
Inner Tubes : KENDA 700C
Bar Tape : FIZIK BLACK

Which one do you think is better? And why?
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