Felt IA Advanced Ultegra DI2 vs Montague Navigator

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	Custom drawn 6061 Series Aluminum with DirectConnect System. Replaceable derailleur hanger and disc mount
Stem	Felt Dagger 31.8 Cold Forged	Angle adjustable stem
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	Alloy, 30 mm rise. 600 mm wide
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	Full Cro-Mo, with disc mounts and ramped dropout
Seatpost	Felt VariMount Aero Tri UHC Advanced carbon fiber, 300 mm length	30.0 X 300mm Alloy
Crankset	Shimano Ultegra R8000, 52/36T, 48 -51 cm: 165 mm, 54 -56 cm: 170 mm, 58 cm: 172.5 mm	SR Suntour. 48/38/28. Alloy 175mm crank arm (170mm on 17″ frame)
Pedals	--	Trekking pedal with all-weather non-slip tread
Chain	Shimano 11-speed	--
Shifters	Shimano Dura-Ace Di2 R9160 (aero extension) with right hand SW-R600 secondary shifter (base bar)	Shimano Sora for Flat Handlebar. 3-Speed Left. 9-Speed Right
Saddle	ISM PS1.0	Zena Comfort
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 R8050 Di2 braze-on	Shimano top pull for triple crankset
Derailleur Rear	Shimano Ultegra R8050 Di2 11-speed short cage	Shimano Sora. 9-Speed
Hub Front	Reynolds Series 1, straight-pull design, 4 pawl, 24T ratchet, 11-speed XDR driver, 12 x 142 mm thru axle, Center Lock	Formula, Alloy, quick release. Disc ready
Hub Rear	Reynolds Series 1, straight-pull design, 12 x 100 mm thru axle, Center Lock	Formula, Alloy, quick release. Disc ready
Spoke	Sapim Sprint bladed	14 Gauge
Cassette	Shimano 11-speed, 11-28T	--

Front	Continental Grand Sport Race folding, 700 x 25c	Kenda Khan 700c x 35mm semi-knobby
Rear	Continental Grand Sport Race folding, 700 x 25c	Kenda Khan 700c x 35mm semi-knobby
Wheel / RIM	Reynolds AR58/62 DB Custom carbon, tubeless ready, 21 mm inner width, 58 mm depth front, 62 mm depth rear	Spoke

Front	TRP HD-T910 hydraulic disc, 140 mm rotor	Promax mechanical disc brake
Rear	TRP HD-T910 hydraulic disc, 140 mm rotor	Promax mechanical disc brake
Brake Lever	TRP HD-T910 hydraulic with integrated secondary shift buttons (right lever only)	--

Front	--	--
Rear	--	--

Colors

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

Midnight Blue

Length	--	431 mm
Width	--	482 mm
Height	--	533 mm
Weight	9.55 kg	13.15 kg

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	Speeds : 27 Speeds Bottom Bracket : Sealed Cartridge Folded Size : 914 x 711 x 304 mm
Accessories	Carbon assembly paste, Aero seatpost slot covers, IA CALpac 2.0, Di2 Internal battery charger, IA BTSpac storage box, Tubeless valve stems	--