Felt IA Advanced Ultegra DI2 vs Surly Straggler

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	Surly Straggler, 100% Surly proprietary 4130 CroMoly tubing. ED Coated. TIG-welded. Double-butted main triangle
Stem	Felt Dagger 31.8 Cold Forged	ProMax 31.8, 4 bolt
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	Salsa Cowbell
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	Surly Straggler, 4130 CroMoly, disc only, lugged and brazed. Sloping crown with threaded eylets, tapered and butted curved blades with mid-blade rack eyelets, dual dropout eyelets
Seatpost	Felt VariMount Aero Tri UHC Advanced carbon fiber, 300 mm length	Seatpost Clamp : Surly Stainless, 30.0 mm ProMax SP-2019 non-offset (38–50cm); ProMax SP2016 offset (52–58cm), 27.2 x 300mm, black
Grip	--	Black Cork
Crankset	Shimano Ultegra R8000, 52/36T, 48 -51 cm: 165 mm, 54 -56 cm: 170 mm, 58 cm: 172.5 mm	SRAM Apex 42T
Chain	Shimano 11-speed	SRAM PC1110
Shifters	Shimano Dura-Ace Di2 R9160 (aero extension) with right hand SW-R600 secondary shifter (base bar)	SRAM Apex 1x11
Saddle	ISM PS1.0	WTB Volt Sport
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	Cane Creek 40, 1-1/8"
Derailleur Front	Shimano Ultegra R8050 Di2 braze-on	--
Derailleur Rear	Shimano Ultegra R8050 Di2 11-speed short cage	SRAM Apex
Hub Front	Reynolds Series 1, straight-pull design, 4 pawl, 24T ratchet, 11-speed XDR driver, 12 x 142 mm thru axle, Center Lock	Novatec, 6 bolt Disc, 32H, QR
Hub Rear	Reynolds Series 1, straight-pull design, 12 x 100 mm thru axle, Center Lock	Novatec, 6 bolt Disc, 32H, QR
Spoke	Sapim Sprint bladed	--
Cassette	Shimano 11-speed, 11-28T	SRAM 11-42t 11spd
Bottom Bracket	--	SRAM GXP

Front	Continental Grand Sport Race folding, 700 x 25c	Surly Knard 700 c x 41, 33TPI
Rear	Continental Grand Sport Race folding, 700 x 25c	Surly Knard 700 c x 41, 33TPI
Wheel / RIM	Reynolds AR58/62 DB Custom carbon, tubeless ready, 21 mm inner width, 58 mm depth front, 62 mm depth rear	Rims: Alex Adventurer 2, tubeless ready

Front	TRP HD-T910 hydraulic disc, 140 mm rotor	Hayes CX Comp, 160 rotors
Rear	TRP HD-T910 hydraulic disc, 140 mm rotor	Hayes CX Comp, 160 rotors
Brake Lever	TRP HD-T910 hydraulic with integrated secondary shift buttons (right lever only)	SRAM Apex

Front	--	--
Rear	--	--

Colors

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

Salmon Candy Red

Length	--	--
Weight	9.55 kg	--

Features	--	Forward-exiting horizontal dropouts for singlespeed compatibility and wheelbase adjustability Downtube mounted shifter bosses (cable housing stops not included with frameset)
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	Size: 54cm - 56cm - 58cm - 60cm - 62cm
Accessories	Carbon assembly paste, Aero seatpost slot covers, IA CALpac 2.0, Di2 Internal battery charger, IA BTSpac storage box, Tubeless valve stems	--