Felt AR FRD Ultimate Dura-ACE DI2 vs Specialized S-Works Tarmac SL8 - Shimano Dura-Ace Di2

Compare Specifications of Felt AR FRD Ultimate Dura-ACE DI2 and Specialized S-Works Tarmac SL8 - Shimano Dura-Ace Di2

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Felt AR FRD Ultimate Dura-ACE DI2
Felt AR FRD Ultimate Dura-ACE DI2

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Specialized S-Works Tarmac SL8 - Shimano Dura-Ace Di2
Specialized S-Works Tarmac SL8 - Shimano Dura-Ace Di2

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Model:

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Technical Specifications
Drivetrain 2x11-speed --
Frame Felt AeroRoad 3.0 UHC Ultimate + TeXtreme carbon fiber S-Works Tarmac SL8 FACT 12r Carbon, Rider First Engineered™, Win Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount disc
Stem Felt Sprint UHC Advanced carbon fiber Roval Rapide Cockpit, Integrated Bar/Stem
Handle Bar PRO Vibe Aero Superlight Roval Rapide Cockpit, Integrated Bar/Stem
Fork Felt AeroRoad 3.0 UHC Ultimate + TeXtreme carbon fiber --
Seatpost Felt AeroRoad IL 2.0 UHC Advanced + TeXtreme carbon fiber S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset
Grip Felt VelvetGel tape with 3M reflective base and Felt Bubble-Tech F-Wing bar end plugs Supacaz Super Sticky Kush
Crankset Shimano Dura-Ace R9100, 52/36T
Crank Length : 48cm: 167.5 mm / 51cm: 170 mm / 54, 56cm: 172.5 mm / 58, 61cm: 175 mm
Shimano Dura-Ace R9200, HollowTech II, 12-speed with 4iiii Precision Pro dual-sided powermeter
Chain Shimano Dura-Ace HG901 Shimano Dura-Ace, 12-speed
Shifters Shimano Dura-Ace Di2 R9170 --
Saddle Prologo Dimension 143 Nack Body Geometry S-Works Power, carbon fiber rails, carbon fiber base
Headset IS (NO.44) --
Derailleur Front Shimano Dura-Ace R9150 Di2, braze-on Shimano Dura-Ace R9250, braze-on
Derailleur Rear Shimano Dura-Ace R9150 Di2, short cage Shimano Dura-Ace R9250, 12-speed
Cassette Shimano Dura-Ace R9100, 11-28T Shimano Dura-Ace, 12-speed, 11-30t
Chainrings -- 52/36T
Bottom Bracket CeramicSpeed EVO386 for Shimano Road Shimano Dura-Ace, BB-R9200
Tyres
Front Continental Grand Prix 5000 TL, 700 x 25c S-Works Turbo Rapidair 2BR, 700x26mm
Rear Continental Grand Prix 5000 TL, 700 x 25c S-Works Turbo Rapidair 2BR, 700x26mm
Wheel / RIM HED Vanquish RC6 Pro Series, 12 mm, Shimano Front: Roval Rapide CLX II, Tubeless, 21mm internal width carbon rim, 51mm depth, Win Tunnel Engineered, Roval AFD hub, 18h, DT Swiss Aerolite spokes
Rear: Roval Rapide CLX II, Tubeless, 21mm internal width carbon rim, 60mm depth, Win Tunnel Engineered, Roval AFD hub, 24h, DT Swiss Aerolite spokes
Tube -- Turbo Ultralight, 60mm Front, 80mm Rear, Presta valve
Brakes
Front Disc, Flat Mount 140 mm minimum rotor Shimano Dura-Ace R9270, hydraulic disc
Rear Disc, Flat Mount 25 mm thickness, 140 mm minimum rotor Shimano Dura-Ace R9270, hydraulic disc
Brake Lever -- Shimano Dura-Ace R9270, hydraulic disc
Suspension
Front -- S-Works FACT 12r Carbon, 12x100mm thru-axle, flat-mount disc
Rear -- --
Colors Available
Colors -- Satin Fog Tint / Green Ghost Pearl / Red Ghost Pearl Fade
Satin Carbon / Viavi Cynan Blue / Viavi Silver-Blue Pearl Fade / Gloss Metallic White Silver


Physical Specs
Length -- --
Weight 7.64 kg 6.62 kg
Overview
Features -- --
Additional Details Sizes : 6 | 48, 51, 54, 56, 58, 61cm
Frame Technologies : MMC / InsideOut
Derailleur Hanger Type Front : Brazed-On | integrated backup plate, non-replaceable, aluminum
Derailleur Hanger Type Rear : Standard Mount TA 12x142 road, replaceable, aluminum
Protector Type : Felt SteererStop integration for replaceable brake and shift protection / Felt CDRoad integration for chain drop protection / Felt ChainPlate for chain suck protection / Clear vinyl for chain slap protection
Brake Calipers : Shimano Dura-Ace R9170, hydraulic disc, flat mount
Routing Type : Semi-Hidden electronic specific
Fork Technologies : Monocoque construction / Integrated crown race
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Which one do you think is better? And why?
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