Author Impulse 27.5 ASL 2021-22 vs Giant FastRoad SL 1 2019

Compare Specifications of Author Impulse 27.5 ASL 2021-22 and Giant FastRoad SL 1 2019

Selected Bikes

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

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Giant FastRoad SL 1 2019
Giant FastRoad SL 1 2019

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Technical Specifications
Speed 24 --
Frame Alloy 6061 27.5" (ASL) ALUXX SL-Grade Aluminum
Stem AUTHOR alloy Giant Connect, 8-degree
Handle Bar AUTHOR 8° 640 / 660 mm Giant Connect flat
Fork Front: RST Gila 27.5 ML lock out (100 mm) Advanced-Grade Composite, alloy Over Drive steerer
Seatpost AUTHOR alloy (31.6) Giant D-Fuse, composite
Grip AUTHOR high density foam --
Crankset -- FC-RS400, 34/50
Pedals Resin Platform
Chain KMC Z8.3 KMC X10 with Missing Link
Shifters SHIMANO Altus (24) Shimano Tiagra, 2 x 10
Saddle AUTHOR Fenix Giant Contact (neutral)
Derailleur Front SHIMANO TY700 (34.9) Shimano Tiagra
Derailleur Rear SHIMANO Altus Shimano Tiagra
Hub Front QUANDO Disc 32 holes Giant S-R2 disc, tubeless wheelset
Hub Rear -- Giant S-R2 disc, tubeless wheelset
Spoke Black steel Giant S-R2 disc, tubeless wheelset
Cassette -- CS-HG500, 11 x 34
Bottom Bracket VP COMP cartridge --
Tyres
Front AUTHOR Speed Master 27.5" × 2.00" Gavia AC 2 tubeless, 700 x 28
Rear AUTHOR Speed Master 27.5" × 2.00" Gavia AC 2 tubeless, 700 x 28
Wheel / RIM Rims: AUTHOR Xenon 27.5 32 holes Giant S-R2 disc, tubeless wheelset
Brakes
Front TEKTRO disc hydraulic (6" rotors) TRP flat mount HD-R210 {F] 140 mm rotor [R] 140 mm rotor, custom caliper
Rear TEKTRO disc hydraulic (6" rotors) TRP flat mount HD-R210 {F] 140 mm rotor [R] 140 mm rotor, custom caliper
Brake Lever TEKTRO WS TRP HD-R210
Suspension
Front -- --
Rear -- --
Colors Available
Colors -- Neon Red
Black Chrome


Physical Specs
Length -- --
Weight 14 kg --
Overview
Features -- - Light and agile
- Smooth and comfortable
- Easy to accessorize
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)
Bottom Bracket : Shimano, threaded
Extras : Contact Ergo Max bar end

Which one do you think is better? And why?
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