Author Impulse 27.5 ASL 2021-22 vs Felt Doctrine Performance NX Eagle 2020

Compare Specifications of Author Impulse 27.5 ASL 2021-22 and Felt Doctrine Performance NX Eagle 2020

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Author Impulse 27.5 ASL 2021-22
Author Impulse 27.5 ASL 2021-22

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Felt Doctrine Performance NX Eagle 2020
Felt Doctrine Performance NX Eagle 2020

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Model:

Brand:

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Technical Specifications
Speed 24 --
Frame Alloy 6061 27.5" (ASL) Felt XC, UHC Performance carbon fiber, MMC with Inside Out construction, full carbon dropouts, Control Taper head tube, low-direct front derailleur mount, replaceable derailleur hanger, flat mount disc mounts, BB92, 12 x 148 mm Syntace style thru axle, internal derailleur cable routing
Stem AUTHOR alloy Devox, ±7¡ rise, ¯31.8 mm with Cr-Mo bolts, XS/SM: 60 mm, M/L: 70 mm, XL: 90 mm
Handle Bar AUTHOR 8° 640 / 660 mm Devox 6061 butted riser, ¯31.8 mm, 15 mm rise, 9¡ sweep, 720 mm wide
Fork Front: RST Gila 27.5 ML lock out (100 mm) RockShox Recon RL, 100 mm travel, lockout remote, 15 x 110 mm Boost thru axle
Seatpost AUTHOR alloy (31.6) Devox butted 6061, dual bolt, 15 mm offset, ¯27.2, XS/SM: 350 mm, MD/LG/XL: 400 mm
Grip AUTHOR high density foam Devox Pauley Grip
Crankset -- SRAM SX Eagle, 32T, SM: 170 mm, MD/LG/XL: 175 mm
Pedals Resin --
Chain KMC Z8.3 SRAM SX Eagle, 12-speed
Shifters SHIMANO Altus (24) SRAM NX Eagle, 1 x 12
Saddle AUTHOR Fenix Devox performance
Headset -- FSA integrated sealed cartridge ACB bearing, No. 42, 1.125" - 1.5"
Derailleur Front SHIMANO TY700 (34.9) --
Derailleur Rear SHIMANO Altus SRAM NX Eagle 12-speed
Hub Front QUANDO Disc 32 holes Shimano driver, 12 x 148 mm Boost thru axle, Center Lock, 32H
Hub Rear -- 15 x 110 mm Boost thru axle, Center Lock, 32H
Spoke Black steel 2.0 mm stainless steel
Cassette -- SRAM SX Eagle, 12-speed, 11-50
Bottom Bracket VP COMP cartridge --
Tyres
Front AUTHOR Speed Master 27.5" × 2.00" Schwalbe Rocket Ron Twinskin, tubeless ready, 29 x 2.25"
Rear AUTHOR Speed Master 27.5" × 2.00" Schwalbe Rocket Ron Twinskin, tubeless ready, 29 x 2.25"
Wheel / RIM Rims: AUTHOR Xenon 27.5 32 holes Double wall, tubeless compatible, 25 mm inner width
Brakes
Front TEKTRO disc hydraulic (6" rotors) Shimano MT400 hydraulic disc, 180 mm rotor
Rear TEKTRO disc hydraulic (6" rotors) Shimano MT400 hydraulic disc, 160 mm rotor
Brake Lever TEKTRO WS Shimano
Suspension
Front -- --
Rear -- --
Colors Available
Colors -- Aquafresh / Carbon (Black)
Satin Charcoal Frost / Carbon (Black)


Physical Specs
Length -- --
Weight 14 kg --
Overview
Features -- --
Additional Details SIZE : 16", 18"
HEAD PARTS: PRESTINE Integrated 1-1/8"
CHAIN WHEEL : PROWHEEL 42-34-24 teeth 170 mm cranks
FREE WHEEL: SHIMANO HG200-8 12-32 (8)
SEAT CLAMP: AUTHOR (34.9)
Chainguide : GW S3, low-direct mount

Bottom Bracket : SRAM DUB BB92

Seatpost Clamp : Felt single bolt, ¯31.8 mm

Thru Axles : Rear: Felt leverless 12 x 148 x 166, thread: M12 x 1.0P x 18L, Syntace

Which one do you think is better? And why?
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