Specialized Sirrus X 3.0 vs Trek 520 Grando

Load Carrying Capacity	--	Combined weight of bicycle, rider, and cargo of 275 pounds (125 kg)
Frame	Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, Plug + Play rack/fender mounts	Trek butted chromoly disc touring, rack & fender mounts, 135 x 5 mm QR
Stem	3D-forged alloy, 31.8mm, 7-degree rise	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	Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm	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	A1 Premium Aluminum, flat-mount disc, Plug + Play fender mounts, low rider rack mounts	520 alloy disc touring, rack mounts, 100 x 5 mm ThruSkew
Seatpost	Alloy, 12mm offset, 2-bolt clamp, 27.2mm	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	Specialized Neutralizer, Body Geometry, locking grip	--
Crankset	Forged aluminum arms, 24mm spindle, Narrow-wide steel chainring 40t, chainguard	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	Specialized Body Geometry Fitness, platform, plastic	Wellgo nylon body, alloy cage
Chain	KMC X9, 9-speed w/ Missing Link™	KMC X10, 10 speed
Shifters	MicroSHIFT SL-M9295, 9-speed	Shimano Tiagra R4700, 10 speed
Saddle	Bridge Sport, Steel rails, 155/143mm	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	microSHIFT Advent, 1x9 w/ clutch	Shimano GRX RX400, long cage, 36T max cog
Hub Front	Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h	Shimano M475, 6-bolt disc, 135 x 5 mm QR
Hub Rear	Alloy, 6-bolt disc, 8-/9-speed freehub, loose ball bearing, quick-release, 32h	Shimano M475, 6-bolt disc, 100 x 5 mm QR
Spoke	Stainless, 14g	14g stainless steel
Cassette	microSHIFT Advent, 9-speed, 11-42t	Shimano HG50, 11-36, 10 speed
Chainrings	40T	--
Bottom Bracket	Threaded BSA 68mm	--

Front	Pathfinder Sport, 700x42	Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700 x 40c
Rear	Pathfinder Sport, 700x42	Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700 x 40c
Wheel / RIM	700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h	Bontrager Affinity Disc, Tubeless Ready, 36-hole, 21 mm width, presta valve
Tube	Standard 40mm PV 700x32-50	--

Front	Tektro HD-R280, hydraulic disc, 160 mm rotor	TRP Spyre C 2.0 mechanical disc, 160 mm rotor
Rear	Tektro HD-R280, hydraulic disc, resin pads, flat-mount, 160mm	TRP Spyre C 2.0 mechanical disc, 160 mm rotor

Front	--	--
Rear	--	--

Colors

Gloss Birch / Satin Taupe Reflective Satin Maroon / Black / Satin Black Reflective Gloss Metallic Obsidian / Satin Black Reflective

Nautical Navy

Length	--	--
Weight	11.4 kg	13.28 kg

Features	--	--
Additional Details	--	Cargo rack : Bontrager Carry Forward