Author Ultrasonic 27.5 2021-22 vs Giant Contend AR 1

Compare Specifications of Author Ultrasonic 27.5 2021-22 and Giant Contend AR 1

Selected Bikes

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

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Giant Contend AR 1
Giant Contend AR 1

Brand:

Model:

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Model:

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Technical Specifications
Speed 11 --
Frame Triple butted hydroformed alloy 6061 27.5" ALUXX-Grade Aluminum, disc
Stem AUTHOR alloy Giant Contact
Handle Bar AUTHOR Flat Top bar 9° 620 / 640 mm Giant D-Fuse SL
Fork Front : RST F1RST 27.5 air, lock out (80 mm) Advanced-Grade Composite, full-composite OverDrive steerer, disc
Seatpost AUTHOR alloy (31.6) Giant D-Fuse, composite
Grip AUTHOR kratton rubber --
Crankset -- Shimano FC-RS510, 34/50
Pedals Alloy --
Chain KMC X11 KMC X11EL-1
Shifters SHIMANO SLX (11) Shimano 105
Saddle AUTHOR Champion Author Navigator Giant Approach, UniClip accessory mount
Derailleur Front -- Shimano 105
Derailleur Rear SHIMANO SLX Shimano 105
Hub Front AUTHOR Xenon 32 holes Giant P-R2 Disc wheelset, 12 mm thru-axle
Hub Rear -- Giant P-R2 Disc wheelset, 12 mm thru-axle
Spoke Black stainless steel 2.0 mm Sapim Race
Cassette -- Shimano 105, 11-speed, 11 x 34
Bottom Bracket PROWHEL BB unit Cartridge
Tyres
Front CST B-Trail aramid 27.5" × 2.25" Giant Gavia Fondo 2, 700 X 32c, tubeless
Rear CST B-Trail aramid 27.5" × 2.25" Giant Gavia Fondo 2, 700 X 32c, tubeless
Wheel / RIM Rims :AUTHOR Xenon TRC 27.5 32 holes Giant P-R2 Disc wheelset
Brakes
Front TEKTRO Gemini disc hydraulic (6" rotors) Shimano 105 hydraulic, 160 mm
Rear TEKTRO Gemini disc hydraulic (6" rotors) Shimano 105 hydraulic, 160 mm
Brake Lever TEKTRO Gemini WS Shimano 105 hydraulic
Suspension
Front -- --
Rear -- --
Colors Available
Colors -- Metallic Navy


Physical Specs
Length -- --
Weight 12 kg --
Overview
Features -- --
Additional Details SIZE :14", 16"
HEAD PARTS: AUTHOR Integrated 1.5" tapered
CHAIN WHEEL : PROWHEEL 32 teeth 165 / 170 mm cranks
Sizes : XS, S, M, ML, L, XL

Which one do you think is better? And why?
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