Giant Defy Advanced Pro 0 vs Surly Cross-Check

Frame	Advanced-grade composite, disc	Surly 4130 CroMoly steel. Main triangle double-butted. TIG-welded. ED Coated.
Stem	Giant Contact SL Aero Light XS:80mm, S:90mm, M:100mm, M/L:100mm, L:110mm, XL:110mm	ProMax, 31.8, 4-Bolt
Handle Bar	Giant Contact SLR D-Fuse XS:40cm, S:40cm, M:42cm, M/L:42cm, L:44cm, XL:44cm	Dimension Mountain
Fork	Advanced SL-grade composite, full-composite OverDrive Aero steerer, disc	Surly Cross-Check, 4130 CroMoly, lugged & brazed. Sloping crown w/threaded eyelets, tapered & butted curved blades w/mid-blade rack eyelets, dual dropout eyelets
Seatpost	Giant D-Fuse SLR, composite, -5/+15mm offset	ProMax SP-2019 non-offset (42–50cm), SP-2016 offset (52–62cm) 27.2 x 300mm Clamp: Surly stainless, 30.0mm
Grip	Stratus Lite 3.0	Black Gel
Crankset	Shimano Ultegra, 34/50 with Giant Power Pro power meter XS:170mm, S:170mm, M:172.5mm, M/L:172.5mm, L:175mm, XL:175mm	Samox 3pcs, BCD110 Square taper, 40t chainring
Chain	Shimano Ultegra	KMC X8
Shifters	Shimano Ultegra Di2 ST-R8170	Microshift Acolyte Xpress
Saddle	Giant Fleet SL	WTB Volt 142
Headset	--	Cane Creek 10
Derailleur Front	Shimano Ultegra Di2 FD-R8150	--
Derailleur Rear	Shimano Ultegra Di2 RD-R8150	Microshift RD-M5185M
Hub Front	Giant Low Friction Hub, CenterLock, 12mm thru-axle	Novatech 32h, 100mm, w/QR
Hub Rear	Giant Low Friction Hub, 30t ratchet driver, CenterLock, 12mm thru-axle	Novatech 32h, 135mm, w/QR
Spoke	Sapim stainless	--
Cassette	Shimano Ultegra, 12-speed, 11x34	Microshift CS-H083, 12-42, 8-speed
Bottom Bracket	Shimano, press fit	68x110.5mm

Front	Giant Gavia Fondo 0, tubeless, 700x32c (33.5mm), folding	Kenda Kwest 700c x 35mm
Rear	Giant Gavia Fondo 0, tubeless, 700x32c (33.5mm), folding	Kenda Kwest 700c x 35mm
Wheel / RIM	Giant SLR 1 36 Carbon Disc WheelSystem	Rims: Alex DH19

Front	Shimano Ultegra Di2 hydraulic, Shimano RT-MT800 160mm rotors	Tektro M730
Rear	Shimano Ultegra Di2 hydraulic, Shimano RT-MT800 160mm rotors	Tektro M730
Brake Lever	Shimano Ultegra Di2	Tektro CL520

Front	--	--
Rear	--	--

Colors

Carbon/BlueDragonfly

BlueGreenGray

Length

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Features	--	Semi-horizontal dropouts for singlespeed compatibility and wheelbase adjustability Accommodations for front and rear racks and fenders Clearance for 700c x 42mm tires with or without fenders
Additional Details	--	Size: 42cm - 46cm - 50cm - 52cm - 54cm - 56cm - 58cm - 60cm - 62cm - 64cm
Accessories	- Computer mount - Fender mount - Water bottle cages	--