Giant Defy Advanced Pro 0 vs Jamis Ventura A1

Frame	Advanced-grade composite, disc	Size Specific Design double-butted 6061 aluminum compact sloping top tube frame design with with redesigned rear triangle, SST tubing diameters and internal cable guides, 1 1.5 - 1 1/8” tapered head tube, butted seat tube for 27.2 seat post, flat mount disc brake mount, replaceable derailleur hanger and fender/rack eyelets
Stem	Giant Contact SL Aero Light XS:80mm, S:90mm, M:100mm, M/L:100mm, L:110mm, XL:110mm	Ritchey 4-Axis, 3D forged 6061 alloy, 6˚ x 90mm (48/51), 100mm (54/56), 120mm (58/61)
Handle Bar	Giant Contact SLR D-Fuse XS:40cm, S:40cm, M:42cm, M/L:42cm, L:44cm, XL:44cm	Ritchey Logic, 6061 aluminum, 31.8 x 400mm (48/51) 420mm (54/56), 440mm (58/61)
Fork	Advanced SL-grade composite, full-composite OverDrive Aero steerer, disc	Jamis Performance ECO carbon composite with carbon steerer, 1.5” hollow formed crown, monocoque one-piece forming technology, carbon dropouts with stainless tabs, flat mount disc brake mount with internal cable routing, exposed fender eyelets
Seatpost	Giant D-Fuse SLR, composite, -5/+15mm offset	Ritchey Road, 27.2 x 350mm with alloy clamp
Grip	Stratus Lite 3.0	--
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	FSA Vero, 50/34T, 170mm (48/51), 172.5mm (54/56), 175mm (58/61)
Pedals	--	Touring platform style, full alloy with toe clips
Chain	Shimano Ultegra	KMC Z9
Shifters	Shimano Ultegra Di2 ST-R8170	Shiftlevers : Shimano Sora ST-R3000 Dual Control STI, 18-speed
Saddle	Giant Fleet SL	Selle Royal Asphalt with integrated clip system
Headset	--	FSA Integrated, threadless, 1.5 - 1 1/8”
Derailleur Front	Shimano Ultegra Di2 FD-R8150	Sora FD-R3000 with 31.8mm alloy clamp
Derailleur Rear	Shimano Ultegra Di2 RD-R8150	Shimano Sora RD-R3000
Hub Front	Giant Low Friction Hub, CenterLock, 12mm thru-axle	--
Hub Rear	Giant Low Friction Hub, 30t ratchet driver, CenterLock, 12mm thru-axle	--
Spoke	Sapim stainless	--
Cassette	Shimano Ultegra, 12-speed, 11x34	Shimano HG201 9-speed, 11-32T
Bottom Bracket	Shimano, press fit	FSA sealed cartridge, 68 x 110.5mm

Front	Giant Gavia Fondo 0, tubeless, 700x32c (33.5mm), folding	Vittoria Zaffiro, 700 x 28c
Rear	Giant Gavia Fondo 0, tubeless, 700x32c (33.5mm), folding	Vittoria Zaffiro, 700 x 28c
Wheel / RIM	Giant SLR 1 36 Carbon Disc WheelSystem	Alex ATD 470 disc specific rims with TCS (Tubeless Compatible System), 32H, Joytec 6-bolt alloy hubs with QR and 14g stainless steel spokes

Front	Shimano Ultegra Di2 hydraulic, Shimano RT-MT800 160mm rotors	Tektro Lyra mechanical disc brake
Rear	Shimano Ultegra Di2 hydraulic, Shimano RT-MT800 160mm rotors	Tektro Lyra mechanical disc brakes
Brake Lever	Shimano Ultegra Di2	Shimano Sora ST-R3000 STI levers

Front	--	--
Rear	--	--

Colors

Carbon/BlueDragonfly

Ink

Length

--

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Features	--	--
Additional Details	--	Tape : Jamis suede tape with gel Sizes : 48, 51, 54, 56, 58, 61cm
Accessories	- Computer mount - Fender mount - Water bottle cages	--