Allied Dura Ace Di2 Complete Bike vs Author Ultrasonic 27.5 2021-22

Compare Specifications of Allied Dura Ace Di2 Complete Bike and Author Ultrasonic 27.5 2021-22

Selected Bikes

Allied Dura Ace Di2 Complete Bike
Allied Dura Ace Di2 Complete Bike

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Author Ultrasonic 27.5 2021-22
Author Ultrasonic 27.5 2021-22

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Model:

Brand:

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Technical Specifications
Speed -- 11
Frame -- Triple butted hydroformed alloy 6061 27.5"
Stem Zipp Service Course SL AUTHOR alloy
Handle Bar Zipp Service Course SL 80
Handle Bar Tape : Arundel Gecko
AUTHOR Flat Top bar 9° 620 / 640 mm
Fork -- Front : RST F1RST 27.5 air, lock out (80 mm)
Seatpost Zipp Service Course SL AUTHOR alloy (31.6)
Grip -- AUTHOR kratton rubber
Crankset Shimano Dura Ace 50/34 --
Pedals -- Alloy
Chain Shimano Dura Ace KMC X11
Shifters Shift levers : Shimano Dura Ace Di2 SHIMANO SLX (11)
Saddle Ergon SR10 Sport AUTHOR Champion Author Navigator
Derailleur Front Shimano Dura Ace Di2 --
Derailleur Rear Shimano Dura Ace Di2 SHIMANO SLX
Hub Front -- AUTHOR Xenon 32 holes
Spoke -- Black stainless steel 2.0 mm
Cassette Shimano Dura Ace 11-30 --
Bottom Bracket -- PROWHEL BB unit
Tyres
Front Panaracer Gravel King 32mm CST B-Trail aramid 27.5" × 2.25"
Rear Panaracer Gravel King 32mm CST B-Trail aramid 27.5" × 2.25"
Wheel / RIM Wheelset : Reynolds Blacklabel ATR Rims :AUTHOR Xenon TRC 27.5 32 holes
Brakes
Front Shimano Dura Ace TEKTRO Gemini disc hydraulic (6" rotors)
Rear Shimano Dura Ace TEKTRO Gemini disc hydraulic (6" rotors)
Brake Lever -- TEKTRO Gemini WS
Suspension
Front -- --
Rear -- --
Colors Available
Colors Ecru Paint/Black Decals
Meissen Blue Paint/Bahama Blue Decals
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Physical Specs
Length -- --
Weight -- 12 kg
Overview
Features -- --
Additional Details BOTTOM BRACKET : Shimano Dura Ace SIZE :14", 16"
HEAD PARTS: AUTHOR Integrated 1.5" tapered
CHAIN WHEEL : PROWHEEL 32 teeth 165 / 170 mm cranks

Which one do you think is better? And why?
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