Author Impulse 27.5 ASL 2021-22 vs Felt F30X 2019

Compare Specifications of Author Impulse 27.5 ASL 2021-22 and Felt F30X 2019

Selected Bikes

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

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Felt F30X 2019
Felt F30X 2019

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Technical Specifications
Speed 24 --
Frame Alloy 6061 27.5" (ASL) Felt Cyclocross FLite custom butted aluminum, Dynaform smooth welded construction, BB386 bottom bracket shell, 12 x 142 mm Syntace style thru axle, shoulder friendly top tube, flat mount disc brake standard, replaceable rear derailleur hanger, internal mechanical cable routing Shock:
Stem AUTHOR alloy Devox, ±6° rise, Ø31.8 mm, 51 cm: 90 mm, 54 - 56 cm: 100 mm, 58 cm: 110 mm, 61 cm: 120 mm
Handle Bar AUTHOR 8° 640 / 660 mm Devox cross bend, 86 mm reach, 130 mm drop, Ø31.8 mm, 47 - 50 cm: 420/450 mm, 53 - 60 cm: 440/470 mm
Fork Front: RST Gila 27.5 ML lock out (100 mm) Felt Cyclocross UHC Advanced carbon fiber construction, Control Taper 1.125" - 1.5" aluminum steerer tube, carbon fiber blades, LR fender mounts, flat mount disc standard, 12 x 100 mm thru axle
Seatpost AUTHOR alloy (31.6) Devox Lite Road, Ø27.2 mm x 300 mm length
Grip AUTHOR high density foam --
Crankset -- Gossamer Compact BB386 EVO, 46/36T, 47 cm: 165 mm, 50 cm: 170 mm, 53 cm: 172.5 mm, 55 - 60 cm: 175 mm
Pedals Resin --
Chain KMC Z8.3 Shimano 11-speed
Shifters SHIMANO Altus (24) Shimano 105 ST-R7020, 11-speed, 43 - 50 cm: Shimano 105 ST-R7025 Short-reach
Saddle AUTHOR Fenix Devox Cross
Headset -- FSA integrated sealed cartridge bearing with Felt Variable Height Cone Spacers (20 mm PC, 4.5 mm aluminum), Felt top cap and aluminum bolt, No.42, 1.125 - 1.5"
Derailleur Front SHIMANO TY700 (34.9) Shimano 105 R7000 clamp-on, Ø34.9 mm
Derailleur Rear SHIMANO Altus Shimano 105 R7000 11-speed short cage
Hub Front QUANDO Disc 32 holes Devox R3 Disc, sealed cartridge bearing, 11-speed, 12 x 142 mm thru axle, Center Lock, 28H
Hub Rear -- Devox R3 Disc, sealed cartridge bearing, 12 x 100 mm thru axle, Center Lock, 24H
Spoke Black steel 2.0 mm stainless steel
Cassette -- Shimano 11-speed, 11-30T
Bottom Bracket VP COMP cartridge --
Tyres
Front AUTHOR Speed Master 27.5" × 2.00" Schwalbe X-One All Around Performance, folding, 700 x 33c
Rear AUTHOR Speed Master 27.5" × 2.00" Schwalbe X-One All Around Performance, folding, 700 x 33c
Wheel / RIM Rims: AUTHOR Xenon 27.5 32 holes Devox CxR3 Disc, tubeless compatible 17 mm inner width, 24 mm depth
Brakes
Front TEKTRO disc hydraulic (6" rotors) Shimano 105 BR-R7070 hydraulic disc, 140 mm rotor
Rear TEKTRO disc hydraulic (6" rotors) Shimano 105 BR-R7070 hydraulic disc, 140 mm rotor
Brake Lever TEKTRO WS Shimano 105 ST-R7020, hydraulic
Suspension
Front -- --
Rear -- --
Colors Available
Colors -- Mist Blue (Black)


Physical Specs
Length -- --
Weight 14 kg 9.5 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)
Bar Tape : Felt CxGel tape with Felt Bubble-Tech F-Wing bar end plugs

Bottom Bracket : FSA BB386 with 30 mm bearings

Seatpost Clamp : Felt single bolt, Ø30.6 mm

Thru Axles : Front: Devox leverless 12 x 100 x 123L, thread: M12 x 1.5 x 15L; Rear: Devox leverless 12 x 142 x 166L Syntace style, thread: M12 x 1.0 x 15L

Which one do you think is better? And why?
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