Giant Propel Advanced Pro 1 Disc vs Trek Marlin 4

Load Carrying Capacity	--	Combined weight of bicycle, rider, and cargo of 300 pounds (136 kg)
Frame	Advanced-Grade Composite, disc	Alpha Silver Aluminum, internal routing, chainstay disc brake mount, rack and kickstand mount, 135 x 5 mm QR
Stem	Giant Contact SL Aero	Size : XS - Bontrager alloy, 31.8 mm, Blendr compatible, 7 degree, 50 mm length ( Size : S - 60 mm length) Size : M - Bontrager alloy, 31.8 mm, Blendr compatible, 7 degree, 70 mm length Size : ML, L - Bontrager alloy, 31.8 mm, Blendr compatible, 7 degree, 80 mm length Size : XL, XXL - Bontrager alloy, 31.8 mm, Blendr compatible, 7 degree, 90 mm length
Handle Bar	Giant Contact SLR Aero	Size : XS, S - Bontrager alloy, 31.8 mm, 5 mm rise, 690 mm width Size : M, ML, L, XL, XXL - Bontrager alloy, 31.8 mm, 5 mm rise, 720 mm width
Fork	Advanced-Grade Composite, full-composite OverDrive 2 steerer, disc	Size : XS - SR Suntour XCE 28, coil spring, preload, 42 mm offset for 27.5'' wheel, 100 mm QR, 80 mm travel Size : S - SR Suntour XCE 28, coil spring, preload, 42 mm offset for 27.5'' wheel, 100 mm QR, 100 mm travel Size : M, ML, L, XL, XXL - SR Suntour XCE 28, coil spring, preload, 46 mm offset for 29'' wheel, 100 mm QR, 100 mm travel
Seatpost	Giant Vector, composite	Size : XS, S - Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length Size : M - Bontrager alloy, 31.6 mm, 12 mm offset, 360 mm length Size : ML, L, XL, XXL - Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length
Grip	--	Bontrager XR Endurance Comp, lock-on
Crankset	Shimano Ultegra, 36/52with Giant Power Pro power meter	Size : XS, S, M - Shimano Tourney TY301, 42/34/24, 170 mm length Size : ML, L, XL, XXL - Shimano Tourney TY301, 42/34/24, 175 mm length
Pedals	--	VP-536 nylon platform
Chain	KMC X11SL-1	KMC Z7, 7 speed
Shifters	Shimano Ultegra Di2	Shimano Altus EF500, 7 speed
Saddle	Giant Contact SL (forward)	Bontrager Arvada, steel rails, 138 mm width
Headset	--	Semi-integrated, 1-1/8''
Derailleur Front	Shimano Ultegra Di2	Shimano Tourney TY300, 34.9 mm clamp, down swing, down pull
Derailleur Rear	Shimano Ultegra Di2	Shimano Tourney TY300, long cage, 34T max cog
Hub Front	Giant SLR 1 Aero Disc WheelSystem, 12 mm thru-axle	Formula DC-31, alloy, 6-bolt, 6/7/8 speed freewheel, 135 x 5 mm QR
Hub Rear	Giant SLR 1 Aero Disc WheelSystem, 12 mm thru-axle	Formula DC-20, alloy, 6-bolt, 5 x 100 mm QR
Spoke	Giant SLR 1 Aero Disc WheelSystem	14g stainless steel
Cassette	Shimano Ultegra, 11 x 30	Shimano TZ500, 14-28, 7 speed
Chainrings	--	1x/2x : 34T, 3x : 42T
Bottom Bracket	--	VP BC73, 73 mm, threaded cartridge

Front	CADEX Race 25, tubeless,700 x 25,, folding	Bontrager XR2 Comp, wire bead, 30 tpi, 29 x 2.20''
Rear	CADEX Race 25, tubeless,700 x 25,, folding	Bontrager XR2 Comp, wire bead, 30 tpi, 29 x 2.00''
Wheel / RIM	Giant SLR 1 Aero Disc Composite WheelSystem ( F:42 mm, R:65 mm)	Bontrager Connection, double-wall, 32-hole, 20 mm width, schrader valve

Front	Shimano Ultegra hydraulic	Tektro MD-M280 mechanical disc, 160 mm rotor
Rear	Shimano Ultegra hydraulic	Tektro MD-M280 mechanical disc, 160 mm rotor
Brake Lever	Shimano Ultegra hydraulic	--

Front	--	--
Rear	--	--

Colors

Metallic Navy Iris Reflective Black

Matte Trek Black Voodoo Aloha Green Matte Anthracite Magenta

Length	--	--
Weight	--	13.98 kg

Features	- Integrated aerodynamics - Integrated disc brakes - Unrivaled efficiency	- Rack Mounts - Rear Kickstand Mount - Internal Cable Routing
Additional Details	Bottom Bracket : Shimano, press fit Extras : RideSense Bluetooth	Max compatible fork travel : 100 mm (XS & S: 490 mm axle-to-crown, M & up: 509 mm axle-to-crown)