Felt FX Advanced GRX 600 vs Polygon Strattos S2

Frame	Felt Cyclocross UHC Advanced + TeXtreme carbon fiber, MMC with Inside Out construction, BB386 bottom bracket shell, 12 x 142 mm Syntace style thru axle, shoulder friendly top tube, flat mount disc brake standard, replaceable rear derailleur hanger, internal mechanical or electronic cable routing	ALX All-Round, QRx130mm
Stem	Devox, ±6¡ rise, ¯31.8 mm, 51 cm: 90 mm, 54 - 56 cm: 100 mm, 58 cm: 110 mm, 61 cm: 120 mm	Entity OE Alloy, EXT: 90mm (XS, S, M) / 105mm (L, XL), BB: 31.8mm, R/D: 10degree
Handle Bar	Devox cross bend, 86 mm reach, 130 mm drop, 8¡ flare, ¯31.8 mm, 47 - 50 cm: 420 mm, 53 - 60 cm: 440 mm	Entity Sport Alloy, W: 400mm (XS, S, M) / 420mm (L, XL), BB: 31.8mm, R/D: 124mm, B/R: 80mm
Fork	Felt Cyclocross UHC Advanced + TeXtreme carbon fiber monocoque construction, Control Taper 1.125" - 1.5" aluminum steerer tube, carbon fiber blades, flat mount disc standard, 12 x 100 mm thru axle	Light Weight Carbon Fork, Straight 1-1/8"
Seatpost	Devox Lite Road, ¯27.2 mm x 300 mm length	Entity Sport Alloy, 27.2 x 350mm
Crankset	Shimano GRX600, 46-30T, 47-50 cm: 170 mm, 53-55 cm: 172.5 mm, 57 - 60 cm: 175 mm	Prowheel Ounce-421C-TT-N 50/34T
Pedals	--	Alloy Cage & Body w/ Reflector
Chain	Shimano 11-speed	KMC Z-8.3
Shifters	Shimano GRX600 11-speed	Shimano Claris ST-R2000, 2x8-Speed Dual Control Lever
Saddle	Prologo Nago Evo X10 T2.0	Entity, Steel Dia 7mm
Headset	FSA integrated sealed cartridge bearing with Felt Variable Height Cone Spacers (20 mm PC, 4.5 mm aluminum), Felt top cap and aluminum bolt, No.42, 1.125 - 1.5"	Zero Stack (ZS) Semi-Integrated Bearing for Straight Head Tube, ZS 44/28.6 | ZS 44/30, ID: 44mm
Derailleur Front	Shimano GRX810 braze-on, with ¯34.9 mm clamp adapter	Alloy QRx100mm 32H
Derailleur Rear	Shimano GRX812, 11-speed long cage	Shimano Claris RD-R2000-SS Direct Attach Alloy QRx130mm 32H
Hub Front	Devox R3 Disc, sealed cartridge bearing, 11-speed, 12 x 142 mm thru axle, Center Lock, 28H	--
Hub Rear	Devox R3 Disc, sealed cartridge bearing, 12 x 100 mm thru axle, Center Lock, 24H	--
Spoke	2.0 mm stainless steel	--
Cassette	Shimano 11-speed, 11-30T	Shimano CS-HG31 11-30T
Bottom Bracket	--	Prowheel BSA Threaded FOR 2-Piece Crankset

Front	Schwalbe X-One All Around MicroSkin TL-Easy, folding, 700 x 33c	Performance Tire 700C​
Rear	Schwalbe X-One All Around MicroSkin TL-Easy, folding, 700 x 33c	Performance Tire 700C​
Wheel / RIM	Devox Variable Road C x 2.1, tubeless compatible 21 mm inner width, 23 mm depth	Alloy Double Wall 622-15 32H

Front	Shimano GRX400 hydraulic disc, 160 mm rotor	TEKTRO R315 Caliper
Rear	ShimanoGRX400 hydraulic disc, 140 mm rotor	TEKTRO R315 Caliper
Brake Lever	Shimano GRX600, hydraulic	Shimano Claris ST-R2000

Front	--	--
Rear	--	--

Colors

Satin Aquafresh / TeXtreme White / TeXtreme (Pattern)

Blue Light Red

Length

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Features	--	--
Additional Details	Bar Tape : Felt CxGel tape with Felt Bubble-Tech F-Wing bar end plugs Bottom Bracket : FSA BB386 with 30 mm bearings Seatpost Clamp : Felt single bolt, ¯31.8 mm Thru Axles : Front: 12 x 100 x 123, thread: M12 x 1.5P x 16L, Maxle; Rear: 12 x 142 x 163 (163L + 7 head = 170 total), thread: M12 x 1.0P x 19L, Syntace	--
Accessories	Carbon assembly paste Chain plate protector	--