Author Sonic 27.5 2021-22 vs Trek 520 Grando

Compare Specifications of Author Sonic 27.5 2021-22 and Trek 520 Grando

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Author Sonic 27.5 2021-22
Author Sonic 27.5 2021-22

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Trek 520 Grando
Trek 520 Grando

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Technical Specifications
Load Carrying Capacity -- Combined weight of bicycle, rider, and cargo of 275 pounds (125 kg)
Frame Triple butted hydroformed alloy 6061 27.5" Trek butted chromoly disc touring, rack & fender mounts, 135 x 5 mm QR
Stem AUTHOR alloy Size : 48 - Bontrager Elite, 31.8 mm, Blendr compatible, 7 degree, 80 mm length
Size : 51 - Bontrager Elite, 31.8 mm, Blendr compatible, 7 degree, 90 mm length
Size : 54, 57 - Bontrager Elite, 31.8 mm clamp, Blendr compatible, 7 degree, 100 mm length
Size : 60, 63 - Bontrager Elite, 31.8 mm clamp, Blendr compatible, 7 degree, 110 mm length
Handle Bar AUTHOR Flat Top bar 9° 620 / 640 mm Size : 48 - Bontrager Comp VR-C, alloy, 31.8 mm, 100 mm reach, 124 mm drop, 40cm width
Size : 51, 54 - Bontrager Comp VR-C, alloy, 31.8 mm, 100 mm reach, 124 mm drop, 42cm width
Size : 57, 60, 63 - Bontrager Comp VR-C, alloy, 31.8 mm, 100 mm reach, 124 mm drop, 44cm width
Fork -- 520 alloy disc touring, rack mounts, 100 x 5 mm ThruSkew
Seatpost AUTHOR alloy (31.6) Size : 48 - Bontrager alloy, 27.2 mm, 12 mm offset, 250 mm length
Size : 51, 54, 57, 60, 63 - Bontrager alloy, 27.2 mm, 12 mm offset, 330 mm length
Grip AUTHOR kratton rubber --
Crankset -- Size : 48, 51 - ProWheel forged alloy, 42/28, 2-piece, 170 mm length
Size : 54, 57, 60, 63 - ProWheel forged alloy, 42/28, 2-piece, 175 mm length
Pedals -- Wellgo nylon body, alloy cage
Chain KMC X10 KMC X10, 10 speed
Shifters SHIMANO Deore (10) Shimano Tiagra R4700, 10 speed
Saddle AUTHOR Champion Bontrager Arvada, steel rails, 138 mm width
Headset -- 1-1/8'' threadless, sealed cartridge bearings
Derailleur Front -- Shimano Tiagra 4700, 34.9 mm clamp, down swing
Derailleur Rear SHIMANO Deore Shimano GRX RX400, long cage, 36T max cog
Hub Front -- Shimano M475, 6-bolt disc, 135 x 5 mm QR
Hub Rear QUANDO Disc 32 holes Shimano M475, 6-bolt disc, 100 x 5 mm QR
Spoke Black stainless steel 2.0 mm 14g stainless steel
Cassette -- Shimano HG50, 11-36, 10 speed
Bottom Bracket PROWHEL BB unit --
Tyres
Front CST B-Trail aramid 27.5" × 2.25" Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700 x 40c
Rear CST B-Trail aramid 27.5" × 2.25" Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700 x 40c
Wheel / RIM Rims : AUTHOR Xenon TRC 27.5 32 holes Bontrager Affinity Disc, Tubeless Ready, 36-hole, 21 mm width, presta valve
Brakes
Front TEKTRO Auriga disc hydraulic (6" rotors) TRP Spyre C 2.0 mechanical disc, 160 mm rotor
Rear -- TRP Spyre C 2.0 mechanical disc, 160 mm rotor
Brake Lever TEKTRO Auriga WS --
Suspension
Front -- --
Rear -- --
Colors Available
Colors -- Nautical Navy


Physical Specs
Length -- --
Weight 12.2 kg 13.28 kg
Overview
Features -- --
Additional Details SIZE : 14", 16"
HEAD PARTS: AUTHOR Integrated 1.5" tapered
CHAIN WHEEL : PROWHEEL 32 teeth 165 / 170 mm cranks
FREE WHEEL: SHIMANO M4100-10 11-46 (10)
Cargo rack : Bontrager Carry Forward

Which one do you think is better? And why?
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