Felt IA Advanced Ultegra vs Twitter Aurora-Disc

Frame	Felt Integrated Aero Tri Disc UHC Advanced + TeXtreme carbon fiber, MMC with Inside Out construction, 68 mm BSA threaded bottom bracket shell, 12 x 142 mm with Syntace style thru axle, flat mount disc brake standard, horizontal dropouts, replaceable rear derailleur hanger, internal mechanical or electronic cable routing	AURORA(Disc&thru-axle 12×142), high modulus Carbon fiber,Aero-Racing,Inner-Cables,Cut&HC, UV laser decals
Stem	Felt Dagger 31.8 Cold Forged	--
Handle Bar	Devox Bayonet 3.1 base bar with Devox Ergomod extensions, ¯31.8 mm, 48 - 51 cm: 390 mm, 54 - 58 cm: 420 mm	TW, high modulus Carbon fiber, Integrated Handlebar&Stem(420*90mm),UV water decals, full Inner-Cables
Fork	Felt Dagger Disc UHC Advanced carbon fiber monocoque construction, 1.125" carbon fiber steerer, upper cover, blades, dropouts, crown; internal disc-brake routing, flat-mount disc brake standard, 12 x 100 mm thru axle	AURORA(Disc&thru-axle 12×100), high modulus Carbon fiber, 700C, UV laser decals
Seatpost	Felt VariMount Aero Tri UHC Advanced carbon fiber, 300 mm length	High modulus Carbon fiber,Aero-Racing
Crankset	Shimano Ultegra R8000, 52/36T, 48 -51 cm: 165 mm, 54 -56 cm: 170 mm, 58 cm: 172.5 mm	RETROSPEC, Alu alloy, Hollow,34-50T
Pedals	--	RS ultra-light Alu alloy CNC with sealed-Bearings for Road
Chain	Shimano 11-speed	SUMC-11S
Shifters	microSHIFT TT 11-speed	--
Saddle	ISM PS1.0	TW, comfortable&lightweight for racing
Headset	FSA integrated, 1.125" 36¡/45¡ sealed ACB cartridge bearings MR122 {873E-RS}, split top race H2145 {No.11AGY-2} with Felt compression device	TW, Alu alloy CNC with sealed-Bearings 52*52mm
Derailleur Front	Shimano Ultegra R8000 braze-on	SHIMANO 105/R7000
Derailleur Rear	Shimano Ultegra R8000 11-speed short cage	SHIMANO 105/R7000
Hub Front	Devox RSL3D, sealed cartridge bearing, 11-speed, 12 x 142 mm thru axle, 6-bolt, 28H	--
Hub Rear	Devox RSL3D, sealed cartridge bearing, 12 x 100 mm thru axle, 6-bolt, 28H	--
Spoke	2.0 mm stainless steel	SHUNJIU, Flat 14G
Cassette	Shimano 11-speed, 11-28T	SUNSHINE-11S,11-32T

Front	Continental Grand Sport Race folding, 700 x 25c	MAXXIS, 120PSI, 700C*25C
Rear	Continental Grand Sport Race folding, 700 x 25c	MAXXIS, 120PSI, 700C*25C
Wheel / RIM	Devox 30A Disc, tubeless ready, 19 mm width, 30 mm depth	RS, Alu Alloy AL7005,Double wall,Matte,W19×H36mm×700C

Front	TRP HD-T910 hydraulic disc, 140 mm rotor	ZOOM, cable pull Hydr+RS Center lock disc160/160
Rear	TRP HD-T910 hydraulic disc, 140 mm rotor	ZOOM, cable pull Hydr+RS Center lock disc160/160
Brake Lever	TRP HD-T910 hydraulic	--

Front	--	--
Rear	--	--

Colors

Matte TeXtreme (White Geo) Matte TeXtreme (Spatter, Gloss Charcoal)

Holographic color +(Red / Orange / Yellow / Blue / DarkGray / CementGray / Silver / White)

Length	--	--
Weight	9.93 kg	9.1 kg

About	--	The Aurora-Disc excels with its high-modulus carbon fiber components in the handlebar, fork, an Read More
Features	--	--
Additional Details	Bar tape : Devox Gel tape and new EVA arm pads with anti-microbial cover Bottom Bracket : Shimano Hollowtech BSA threaded Seatpost Clamp : Felt Internaloc integrated with titanium bolts Thru axle : Front: 12 x 100 x 118, thread: M12 x 1.5P x 13L, Maxle; Rear: 12 x 142 x 163 (163L + 9 head = 172 total), thread: M12 x 1.0P x 19L, Syntace	--
Accessories	Carbon assembly paste Aero seatpost slot covers IA CALpac 2.0 IA BTSpac storage box	--