Trek Domane AL 2 Gen 4 vs Trek Zelda 3i

Load Carrying Capacity	125 kg (275 lb)	Combined weight of bicycle, rider, and cargo of 300 pounds (136 kg)
Frame	100 Series Alpha Aluminium, tapered head tube, internal routing, mudguard mounts, flat-mount disc, UDH, 142x12 mm thru axle	Boomerang 6061-T6 aluminum with patented Flat Foot Technology
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	Alloy classic
Handle Bar	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	Electra Cafe
Fork	Domane AL carbon, tapered carbon steerer, internal brake routing, fender mounts, flat mount disc, 12x100mm thru axle	Steel unicrown
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	Classic alloy pillar
Grip	Bontrager Supertack Perf tape	Custom
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	Electra custom alloy 3-piece
Pedals	--	Electra retro
Chain	Shimano Sora HG71, 8 speed	KMC S1 nickel plated
Shifters	Shimano Claris ST-R2000-R, 8 speed, right Shimano Claris ST-R2000-L, 8 speed, left	Shimano Nexus Revo 3-speed twist with optical gear display
Saddle	Verse Short, steel rails, 145 mm width	Electra comfort with matching design with double-coil springs
Headset	--	1" steel threaded
Derailleur Front	Shimano Claris R2000, 31.8 mm clamp	--
Derailleur Rear	Shimano Claris R2000, medium cage, 34T max cog	--
Hub Front	Formula RX-512 alloy, 6-bolt, 100x12 mm thru axle	Shimano Nexus 3-speed internal with coaster brake, 36h
Hub Rear	Formula RX-142 alloy, 6-bolt, Shimano 11-speed freehub, 142x12 mm thru axle	Shimano Nexus HB-IM40 with roller brake hub, alloy, 36h
Spoke	14 g stainless steel, black	--
Cassette	Shimano HG31, CS-HG31, 11-32, 8 speed	22t
Chainrings	1x: 50T, 2x: 50/34	44t steel chainring
Bottom Bracket	Shimano UN300, 68 mm, threaded cartridge, 110 mm spindle	Sealed cartridge
Stand	--	Integrated kickstand

Front	Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32 mm	RetroRunner 26" × 2.125"
Rear	Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32 mm	RetroRunner 26" × 2.125"
Wheel / RIM	Bontrager Paradigm SL, Tubeless Ready, 24-hole, 21 mm width, Presta valve	Painted alloy

Front	Tektro C550 mechanical disc brake, dual piston, flat mount Tektro wave, 6-bolt, 160 mm	Shimano BR-C3000 roller brake
Rear	Tektro C550 mechanical disc brake, dual piston, flat mount Tektro wave, 6-bolt, 160 mm	Shimano coaster brake

Front	--	--
Rear	--	--

Colors

Crimson to Dark Carmine Fade Matte Lithium Grey

Pearl

Length	--	--
Weight	56 - 10.55 kg	17.04 kg

Features	--	- Flat Foot Technology
Additional Details	--	Painted fenders Stainless steel and anti-rust hardware Custom bell