Felt IA Advanced Ultegra vs Ridley Grifn RS

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	Grifn RS , TA12x142 , Mudguard mounts , UDH , BB86 , Removable front derailleur clamp
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	Forza Cirrus Pro Integrated Flared , 90mm - 380mm (cc shifters) - 445mm (cc drops) , 16° flared , Drop 120mm , Reach 70mm
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	4ZA AllRoad RS 7E8/GRS01Bs
Seatpost	Felt VariMount Aero Tri UHC Advanced carbon fiber, 300 mm length	Forza Aero , Zero Offset , 350mm
Crankset	Shimano Ultegra R8000, 52/36T, 48 -51 cm: 165 mm, 54 -56 cm: 170 mm, 58 cm: 172.5 mm	Shimano 105 , 50/34 , 172mm
Chain	Shimano 11-speed	--
Shifters	microSHIFT TT 11-speed	--
Saddle	ISM PS1.0	Selle Italia Model Y , Black
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	--
Derailleur Front	Shimano Ultegra R8000 braze-on	Shimano 105 DI2 , 2x12 , Braze-on
Derailleur Rear	Shimano Ultegra R8000 11-speed short cage	Shimano 105 DI2 , 2x12s
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	--
Cassette	Shimano 11-speed, 11-28T	Shimano 105, 12s , 11-34

Front	Continental Grand Sport Race folding, 700 x 25c	--
Rear	Continental Grand Sport Race folding, 700 x 25c	--
Wheel / RIM	Devox 30A Disc, tubeless ready, 19 mm width, 30 mm depth	Front - Forza Levanto Gravel db , TA 12x100mm , Clincher-TLR , Forza 3 Beaufort hub , 23mm Internal Width , 40mm deep Rear - Forza Levanto Gravel db , TA 12x142mm , Clincher-TLR , 23mm Internal Width , 40mm deep

Front	TRP HD-T910 hydraulic disc, 140 mm rotor	Flat Mount
Rear	TRP HD-T910 hydraulic disc, 140 mm rotor	Flat Mount
Brake Lever	TRP HD-T910 hydraulic	--

Front	--	--
Rear	--	--

Colors

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

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Length	--	--
Weight	9.93 kg	--

Features	--	- Optimized Tire Clearance - Diffuser Fork Crown - Lightweight Carbon Frame - All - Road Geometry - Cable Routing For Lights - Removable Front Derailleur Clamp
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	--