Author Sonic 27.5 2021-22 vs Trek Top Fuel 9.9 X01

Load Carrying Capacity	--	Combined weight of bicycle, rider, and cargo of 300 pounds (136 kg)
Frame	Triple butted hydroformed alloy 6061 27.5"	OCLV Mountain Carbon main frame & stays, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armor, magnesium rocker link, Mino Link, ABP, Boost148, 115 mm travel
Stem	AUTHOR alloy	Size : S, M, M/L - Bontrager Kovee Pro, 35 mm, Knock Block, Blendr compatible, 13 degree, 60 mm length Size : L, XL - Bontrager Kovee Pro, 35 mm, Knock Block, Blendr compatible, 13 degree, 70 mm length
Handle Bar	AUTHOR Flat Top bar 9° 620 / 640 mm	Bontrager Line Pro, OCLV Carbon, 35 mm, 15 mm rise, 750 mm width
Fork	--	Fox Factory 34 Step-Cast, Float EVOL air spring, FIT4 2-position damper, dual remote lockout, tapered steerer, 44 mm offset, Kashima Coat, Boost110, 15 mm Kabolt axle, 120 mm travel
Seatpost	AUTHOR alloy (31.6)	Size : S - Bontrager Line Elite Dropper, 100 mm travel, MaxFlow, internal routing, 31.6 mm, 340 mm length Size : M, M/L - Bontrager Line Elite Dropper, 150 mm travel, internal routing, 31.6 mm, 440 mm length Size : L, XL - Bontrager Line Elite Dropper, 170 mm travel, internal routing, 31.6 mm, 480 mm length
Grip	AUTHOR kratton rubber	Bontrager XR Trail Elite, nylon lock-on
Crankset	--	Size : S - SRAM X01 Eagle Carbon, DUB, 32T alloy ring, Boost (52 mm chainline), 170 mm length Size : M, M/L, L, XL - SRAM X01 Eagle, DUB, 32T alloy ring, Boost (52 mm chainline), 175 mm length
Chain	KMC X10	SRAM XX1 Eagle, 12 speed
Shifters	SHIMANO Deore (10)	SRAM X01 Eagle, 12 speed
Saddle	AUTHOR Champion	Bontrager Montrose Pro, 7 x 10 mm carbon rails, 138 mm width
Headset	--	Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom
Derailleur Rear	SHIMANO Deore	SRAM X01 Eagle
Hub Rear	QUANDO Disc 32 holes	--
Spoke	Black stainless steel 2.0 mm	--
Cassette	--	SRAM Eagle XG-1275, 10-52, 12 speed
Chainrings	--	36T
Bottom Bracket	PROWHEL BB unit	SRAM DUB, 92 mm, PressFit

Front	CST B-Trail aramid 27.5" × 2.25"	Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120tpi, 29 x 2.40''
Rear	CST B-Trail aramid 27.5" × 2.25"	Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120tpi, 29 x 2.40''
Wheel / RIM	Rims : AUTHOR Xenon TRC 27.5 32 holes	Front : Bontrager Kovee Pro 30 Carbon, Tubeless Ready, 6-bolt, Boost 110, 15 mm thru axle Rear : Bontrager Kovee Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, XD Driver, 6-bolt, Boost148, 12 mm thru axle

Front	TEKTRO Auriga disc hydraulic (6" rotors)	SRAM G2 RSC 4-piston hydraulic disc Brake Rotor : SRAM CenterLine, 6-bolt, round-edge, 160 mm
Rear	--	SRAM G2 RSC 4-piston hydraulic disc Brake Rotor : SRAM CenterLine, 6-bolt, round edge, 180 mm
Brake Lever	TEKTRO Auriga WS	--

Front	--	--
Rear	--	--

Colors

--

Matte Raw Carbon/Voodoo Trek Black Gloss Red/Matte Carbon Smoke Carbon Blue Smoke/Radioactive Coral

Length	--	--
Weight	12.2 kg	11.30 kg

Features	--	- Straight Shot downtube - Active Braking Pivot - Control Freak Cable Management - Complete Tubeless System - Suspension Calculator - Mino Link Adjustable Geometry - Carbon Care Wheel Loyalty Program
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)	Shock : Fox Factory Float, 2-position DPS damper, Kashima Coat, 190 x 45 mm Suspension lever : RockShox TwistLoc Full Sprint dual remote with grips Max compatible fork travel : 130 mm