Cervelo Dura Ace Di2 vs KEYSTO KS780

Compare Specifications of Cervelo Dura Ace Di2 and KEYSTO KS780

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Cervelo Dura Ace Di2
Cervelo Dura Ace Di2

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KEYSTO KS780
KEYSTO KS780

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Technical Specifications
Frame -- 27.5" Steel Special-Shaped Tubes
Stem Cervélo Carbon Stem --
Handle Bar Cervélo, AB06 --
Fork Cervélo All-Carbon, Tapered R5 Fork for Disc 27.5" Steel Suspension Lock-Out Travel:100mm
Seatpost Cervélo Carbon SP18 --
Crankset Shimano Dura-Ace 9100 52/36 --
Chain Shimano CN-HG901, 11 spd --
Shifters Shimano Dura-Ace Di2 9170, 11 spd SF-TS60
Saddle Prologo Zero II STN --
Headset FSA IS2 1-1/8 x 1-1/2 --
Derailleur Front Shimano Dura-Ace Di2 9150, 11 spd FD-10TT
Derailleur Rear Shimano Dura-Ace Di2 9150, 11 spd RD23-A
Cassette Shimano Dura-Ace CS-R9100, 11-30 --
Tyres
Front Vittoria Corsa TLR G 25c 27.5" x 2.125" Tyre
Rear Vittoria Corsa TLR G 25c 27.5" x 2.125" Tyre
Wheel / RIM DT Swiss PRC 1450 Spline 35 Disc Spoke
Brakes
Front -- Alloy Mechanical Disc
Rear -- Alloy Mechanical Disc
Suspension
Front -- --
Rear -- --
Colors Available
Colors -- Blue


Physical Specs
Length -- --
Overview
Features -- --
Additional Details Bottom Bracket : Cervélo BBright Connect 24 x 90

Brake caliper : Shimano Dura-Ace 9170 Hydraulic Disc

Brake Rotor : Shimano SM-RT900, 160 mm
Wheel : 27.5" Alloy Double Wall
Chainwheel : 24/34/42T*170L

Which one do you think is better? And why?
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