Trek Domane AL 2 Disc vs Trek Domane AL 2 Gen 4

Load Carrying Capacity	Combined weight of bicycle, rider, and cargo of 275 pounds (125 kg)	125 kg (275 lb)
Frame	100 Series Alpha Aluminum, tapered head tube, internal routing, fender mounts, DuoTrap S compatible, flat mount disc, 142 x 12 mm thru axle	100 Series Alpha Aluminium, tapered head tube, internal routing, mudguard mounts, flat-mount disc, UDH, 142x12 mm thru axle
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	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
Handle Bar	Size : 44, 49 - Bontrager Comp VR-S, alloy, 31.8 mm, 81 mm reach, 118 mm drop, 38cm width Size : 52 - Bontrager Comp VR-S, alloy, 31.8 mm, 81 mm reach, 118 mm drop, 40cm width Size : 54, 56 - Bontrager Comp VR-C, alloy, 31.8 mm, 100 mm reach, 124 mm drop, 42cm width Size : 58, 61 - Bontrager Comp VR-C, alloy, 31.8 mm, 100 mm reach, 124 mm drop, 44cm width	Size: 44 Bontrager Comp, alloy, 31.8 mm, 80 mm reach, 121 mm drop, 36 cm control width, 40 cm drop width Size: 44, 49 Bontrager Comp VR-S, alloy, 31.8 mm, 81 mm reach, 118 mm drop, 38 cm width Size: 49 Bontrager Comp, alloy, 31.8 mm, 80 mm reach, 121 mm drop, 38 cm control width, 42 cm drop width Size: 52 Bontrager Comp, alloy, 31.8 mm, 80 mm reach, 121 mm drop, 40 cm control width, 44 cm drop width Size: 52 Bontrager Comp VR-S, alloy, 31.8 mm, 81 mm reach, 118 mm drop, 40 cm width Siz
Fork	Domane AL carbon, tapered alloy steerer, internal brake routing, fender mounts, flat mount disc, 12 x 100 mm thru axle	Domane AL carbon, tapered carbon steerer, internal brake routing, fender mounts, flat mount disc, 12x100mm thru axle
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	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
Grip	--	Bontrager Supertack Perf tape
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	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
Chain	Shimano Sora HG71, 8 speed	Shimano Sora HG71, 8 speed
Shifters	Shimano Claris R2000, 8 speed	Shimano Claris ST-R2000-R, 8 speed, right Shimano Claris ST-R2000-L, 8 speed, left
Saddle	Size : 44, 49, 52 - Bontrager P3 Verse Comp, steel rails, 155 mm width Size : 54, 56, 58, 61 - Bontrager P3 Verse Comp, steel rails, 145 mm width	Verse Short, steel rails, 145 mm width
Headset	FSA Integrated, sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom	--
Derailleur Front	Shimano Claris R2000, 31.8 mm clamp	Shimano Claris R2000, 31.8 mm clamp
Derailleur Rear	Shimano Claris R2000, long cage, 34T max cog	Shimano Claris R2000, medium cage, 34T max cog
Hub Front	Formula RX-142 alloy, 6-bolt, Shimano 11-speed freehub, 142 x 12 mm thru axle	Formula RX-512 alloy, 6-bolt, 100x12 mm thru axle
Hub Rear	Formula RX-512 alloy, 6-bolt, 100 x 12 mm thru axle	Formula RX-142 alloy, 6-bolt, Shimano 11-speed freehub, 142x12 mm thru axle
Spoke	14g stainless steel	14 g stainless steel, black
Cassette	Shimano HG31, 11-32, 8 speed	Shimano HG31, CS-HG31, 11-32, 8 speed
Chainrings	--	1x: 50T, 2x: 50/34
Bottom Bracket	Shimano UN30, 68mm, threaded cartridge, 110 mm spindle	Shimano UN300, 68 mm, threaded cartridge, 110 mm spindle

Front	Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700 x 32c	Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32 mm
Rear	Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700 x 32c	Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32 mm
Wheel / RIM	Bontrager Affinity Disc, Tubeless Ready, 24-hole, 21 mm width, presta valve	Bontrager Paradigm SL, Tubeless Ready, 24-hole, 21 mm width, Presta valve

Front	Tektro C550 mechanical disc brake, dual piston, flat mount, 160 mm rotor	Tektro C550 mechanical disc brake, dual piston, flat mount Tektro wave, 6-bolt, 160 mm
Rear	Tektro C550 mechanical disc brake, dual piston, flat mount, 160 mm rotor	Tektro C550 mechanical disc brake, dual piston, flat mount Tektro wave, 6-bolt, 160 mm

Front	--	--
Rear	--	--

Colors

Gloss Mulsanne Blue/Matte Trek Black Trek Black/Carbon Smoke Purple Abyss/Trek Black

Crimson to Dark Carmine Fade Matte Lithium Grey

Length	--	--
Weight	10.55 kg	56 - 10.55 kg

Features

- Rack Mounts - Endurance Fit - Endurance Geometry - Fender Compatible - Additional Tire Clearance

--