Trek Domane AL 2 Gen 3 vs Trek Emonda S 4

Frame	100 Series Alpha Aluminium, tapered head tube, internal routing, mudguard mounts, DuoTrap S-compatible, flat-mount disc, 142x12 mm thru axle	Ultralight 300 Series OCLV Carbon, ride-tuned performance tube optimization, E2 tapered head tube, BB86.5, DuoTrap compatible
Stem	Size: 44 Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length Size: 49 Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length Size: 52, 54 Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length Size: 56, 58 Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 100 mm length Size: 61 Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 110 mm length	Bontrager Elite, 31.8 mm, 7 degree, with computer & light mounts
Handle Bar	Size: 44, 49 Bontrager Comp VR-S, alloy, 31.8 mm, 81 mm reach, 118 mm drop, 38 cm width Size: 52 Bontrager Comp VR-S, alloy, 31.8 mm, 81 mm reach, 118 mm drop, 40 cm width Size: 54, 56 Bontrager Comp VR-C, alloy, 31.8 mm, 100 mm reach, 124 mm drop, 42 cm width Size: 58, 61 Bontrager Comp VR-C, alloy, 31.8 mm, 100 mm reach, 124 mm drop, 44 cm width	Bontrager Race VR-C, 31.8 mm
Fork	Size: 44, 49, 52, 54, 56, 58, 61 Domane AL carbon, tapered alloy steerer, internal brake routing, fender mounts, flat mount disc, 12x100mm thru axle	Émonda carbon, E2 tapered steerer
Seatpost	Size: 44, 49 Bontrager Comp, 6061 alloy, 27.2 mm, 8 mm offset, 250 mm length Size: 52, 54, 56, 58, 61 Bontrager Comp, 6061 alloy, 27.2 mm, 8 mm offset, 330 mm length	Bontrager alloy, 2-bolt head, 27.2 mm, 8 mm offset
Crankset	Size: 44 Shimano RS200, 50/34 (compact), 165 mm length Size: 49, 52, 54 Shimano RS200, 50/34 (compact), 170 mm length Size: 56, 58, 61 Shimano RS200, 50/34 (compact), 175 mm length	Shimano Tiagra
Chain	Shimano Sora HG71, 8 speed	Shimano Tiagra
Shifters	Size: 44, 49, 52, 54, 56, 58, 61 Shimano Claris ST-R2000-R, 8 speed, right Size: 44, 49, 52, 54, 56, 58, 61 Shimano Claris ST-R2000-L, 8 speed, left	Shimano Tiagra
Saddle	Size: 44, 49, 52 Bontrager Verse Comp, steel rails, 155 mm width Size: 54, 56, 58, 61 Bontrager Verse Comp, steel rails, 145 mm width	Bontrager Montrose Comp
Headset	FSA Integrated, sealed cartridge bearing, 1-1/8" top, 1.5" bottom	Integrated, cartridge bearing, sealed, 1 1/8-inch top, 1 1/2-inch bottom
Derailleur Front	Shimano Claris R2000, 31.8 mm clamp	Shimano Tiagra
Derailleur Rear	Shimano Claris R2000, medium cage, 34T max cog	Shimano Tiagra
Hub Front	Formula RX-512 alloy, 6-bolt, 100x12 mm thru axle	Alloy
Hub Rear	Formula RX-142 alloy, 6-bolt, Shimano 11-speed freehub, 142x12 mm thru axle	Alloy
Cassette	Shimano HG31, CS-HG31, 11-32, 8 speed	Shimano Tiagra, 10-speed: 11-28
Chainrings	1x: 42T, 2x: 50/34	50 / 34
Bottom Bracket	Shimano UN300, 68 mm, threaded cartridge, 110 mm spindle	--

Front	Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32 mm	Bontrager R1 Hard-Case Lite, 700 x 25 c
Rear	Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32 mm	Bontrager R1 Hard-Case Lite, 700 x 25 c
Wheel / RIM	Size: 44, 49, 52, 54, 56, 58, 61 Bontrager Affinity Disc, Tubeless Ready, 24-hole, 21 mm width, Presta valve Size: 44, 49, 52, 54, 56, 58, 61 Bontrager Paradigm SL, Tubeless Ready, 24-hole, 21 mm width, Presta valve Size: 44, 49, 52, 54, 56, 58, 61 Bontrager Paradigm, Tubeless Ready, 24-hole, 21 mm width, Presta valve	Bontrager tubeless ready

Front	Tektro C550 mechanical disc brake, dual piston, flat-mount, 160 mm rotor	Shimano Tiagra
Rear	Tektro C550 mechanical disc brake, dual piston, flat-mount, 160 mm rotor	Shimano Tiagra
Brake Lever	--	Shimano Tiagra

Front	--	--
Rear	--	--

Colors

--

Trek Black/California Sky Blue

Length	--	--
Weight	10.76 kg	--

Features	--	- 300 Series OCLV Carbon makes the ultimate light bike possible - Perfectly balanced, ultra-responsive ride feel
Additional Details	--	Bottom Bracket : Press Fit