Tommaso Siena vs Viathon R.1 Ultegra

Frame	Tommaso 6061 SLA Aluminum Compact Road Frame	VIATHON R.1 ROAD FRAME
Stem	Tommaso Ultralight Sport Series Aluminum (+/- 7°) Stem Length: 75mm (XS Frame) / 90mm (S Frame) / 105mm (M Frame) / 120mm (L, XL Frames)	ZIPP SERVICE COURSE SL B1, 31.8 MM, 6°, 110 MM
Handle Bar	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	FIZIK SERVICE COURSE SL-70 ERGO
Fork	Tommaso SST Steel with Aluminum Steer Tube	VIATHON R.1 ROAD FORK
Seatpost	Tommaso TRS Ultralight Race Series Aluminum 27.2mm	ZIPP SERVICE COURSE SL B1, 0 OFFSET, 27.2 MM, 330 MM
Crankset	Shimano Tourney Triple 30/39/50T Crank Arm Length : 165mm (XS Frames) / 170mm (S, M Frames) / 175mm (L, XL Frames)	SHIMANO ULTEGRA FC-R8000, HOLLOWTECH 2, 50-34T
Pedals	Composite Flat	--
Chain	KMC Z-51 (7spd Chain)	SHIMANO CN-HG701-11, 11-SPEED
Shifters	Shimano Tourney	SHIMANO ULTEGRA ST-R8020, DISC BRAKE
Saddle	Tommaso Saddle	FIZIK ANTARES R3
Headset	1-1/8" Threadless Integrated	--
Derailleur Front	Shimano Tourney (3-spd)	SHIMANO ULTEGRA FD-R8000, DOWN-SWING, BRAZED-ON TYPE
Derailleur Rear	Shimano Tourney (7-spd)	SHIMANO ULTEGRA RD-R8000, 11-SPEED, SHADOW
Cassette	Shimano Tourney 12-28t - 7spd	SHIMANO ULTEGRA CS-R8000, 11-SPEED, 11-30
Bottom Bracket	Shimano BB-UN26	ROTOR PRESS FIT 30TO24 CONVERTER

Front	CST Tirent All-Terrain 700x40c	CONTINENTAL GRAND PRIX 5000 S, 700 X 25, BLACK + BLACK CHILI
Rear	CST Tirent All-Terrain 700x40c	CONTINENTAL GRAND PRIX 5000 S, 700 X 25, BLACK + BLACK CHILI
Wheel / RIM	Tommaso TC-20D Wheelset - 28 Spokes	MERCURY S3C CARBON DISC

Front	Avid BB5 Disc Brakes	SHIMANO SM-RT800, 160 MM, W/LOCK RING
Rear	--	SHIMANO SM-RT800, 160 MM, W/LOCK RING
Brake Lever	Shimano Tourney	SHIMANO ULTEGRA ST-R8020, DISC BRAKE

Front	--	--
Rear	--	--

Colors

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Copper Silver

Length

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Features	--	- Shimano Ultegra for shifting speed and accuracy - Mercury S3C carbon wheels for explosive speed and a crisp road feel - Internal cable routings reduce aerodynamic drag - Zipp Service Course SL cockpit for steering precision and comfort
Additional Details	Sizes: XS, S, M, L, XL Speeds : 3x7 (21 Total Speeds) Tubes : 700 x 40c Presta	Sizes : 52, 54, 56, 57.5, 59 Front Axle : SHIMANO E-THRU AXLE 100 x 12MM Rear Axle : SHIMANO E-THRU AXLE 142 x 12MM Inner Tubes : KENDA 23/25C Bar Tape : FIZIK WHITE