Giant Defy Advanced Pro 0 vs Tommaso Siena

Frame	Advanced-grade composite, disc	Tommaso 6061 SLA Aluminum Compact Road Frame
Stem	Giant Contact SL Aero Light XS:80mm, S:90mm, M:100mm, M/L:100mm, L:110mm, XL:110mm	Tommaso Ultralight Sport Series Aluminum (+/- 7°) Stem Length: 75mm (XS Frame) / 90mm (S Frame) / 105mm (M Frame) / 120mm (L, XL Frames)
Handle Bar	Giant Contact SLR D-Fuse XS:40cm, S:40cm, M:42cm, M/L:42cm, L:44cm, XL:44cm	Tommaso Ultralight Alloy Compact Flat Top Bar Handlebar Width : 400mm (XS Frame) / 420mm (S, M, L Frames) / 440mm (XL Frame) Handlebar Drop : 125mm Handlebar Tape : Tommaso Cork Tape Black
Fork	Advanced SL-grade composite, full-composite OverDrive Aero steerer, disc	Tommaso SST Steel with Aluminum Steer Tube
Seatpost	Giant D-Fuse SLR, composite, -5/+15mm offset	Tommaso TRS Ultralight Race Series Aluminum 27.2mm
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	Shimano Tourney Triple 30/39/50T Crank Arm Length : 165mm (XS Frames) / 170mm (S, M Frames) / 175mm (L, XL Frames)
Pedals	--	Composite Flat
Chain	Shimano Ultegra	KMC Z-51 (7spd Chain)
Shifters	Shimano Ultegra Di2 ST-R8170	Shimano Tourney
Saddle	Giant Fleet SL	Tommaso Saddle
Headset	--	1-1/8" Threadless Integrated
Derailleur Front	Shimano Ultegra Di2 FD-R8150	Shimano Tourney (3-spd)
Derailleur Rear	Shimano Ultegra Di2 RD-R8150	Shimano Tourney (7-spd)
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 Tourney 12-28t - 7spd
Bottom Bracket	Shimano, press fit	Shimano BB-UN26

Front	Giant Gavia Fondo 0, tubeless, 700x32c (33.5mm), folding	CST Tirent All-Terrain 700x40c
Rear	Giant Gavia Fondo 0, tubeless, 700x32c (33.5mm), folding	CST Tirent All-Terrain 700x40c
Wheel / RIM	Giant SLR 1 36 Carbon Disc WheelSystem	Tommaso TC-20D Wheelset - 28 Spokes

Front	Shimano Ultegra Di2 hydraulic, Shimano RT-MT800 160mm rotors	Avid BB5 Disc Brakes
Rear	Shimano Ultegra Di2 hydraulic, Shimano RT-MT800 160mm rotors	--
Brake Lever	Shimano Ultegra Di2	Shimano Tourney

Front	--	--
Rear	--	--

Colors

Carbon/BlueDragonfly

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Length

--

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Features	--	--
Additional Details	--	Sizes: XS, S, M, L, XL Speeds : 3x7 (21 Total Speeds) Tubes : 700 x 40c Presta
Accessories	- Computer mount - Fender mount - Water bottle cages	--