Sun Retro CB vs Trek Domane AL 2 Gen 4

Load Carrying Capacity	250 Lbs	125 kg (275 lb)
Frame	--	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
Handle Bar	Steel, 700mm Wide x 113mm Rise x 25.4mm Clamp	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	1-1/8" High Tensile Steel, Curved Legs, Double Eyelets	Domane AL carbon, tapered carbon steerer, internal brake routing, fender mounts, flat mount disc, 12x100mm thru axle
Seatpost	Steel w/o Clamp, 25.4 x 350mm	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	Kraton Rubber, 125mm Left / 92mm Right	Bontrager Supertack Perf tape
Crankset	One-Piece Steel, 170mm	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
Pedals	VP 875, Slip Resistant Top, 1/2"	--
Chain	K.M.C. Z410, 1/2" x 1/8"	Shimano Sora HG71, 8 speed
Shifters	--	Shimano Claris ST-R2000-R, 8 speed, right Shimano Claris ST-R2000-L, 8 speed, left
Saddle	Cruiser, Coil Spring Suspension, Black	Verse Short, steel rails, 145 mm width
Headset	Steel, Caged Bearings, 25.4 x 34 x 30mm, Black	--
Derailleur Front	--	Shimano Claris R2000, 31.8 mm clamp
Derailleur Rear	--	Shimano Claris R2000, medium cage, 34T max cog
Hub Front	KT Coaster Brake, 36H x 14G	Formula RX-512 alloy, 6-bolt, 100x12 mm thru axle
Hub Rear	Steel, 36H x 14G with 3/8" Bolt-On Axle	Formula RX-142 alloy, 6-bolt, Shimano 11-speed freehub, 142x12 mm thru axle
Spoke	14G Stainless Steel with CP Brass Nipples	14 g stainless steel, black
Cassette	--	Shimano HG31, CS-HG31, 11-32, 8 speed
Chainrings	--	1x: 50T, 2x: 50/34
Sprocket	19T x 1/2'' x 1/8''	--
Bottom Bracket	Steel for OPC, Caged Bearings	Shimano UN300, 68 mm, threaded cartridge, 110 mm spindle
Stand	Alloy, Center Mount	--

Front	26" x 2.25" Cruiser Tire	Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32 mm
Rear	26" x 2.25" Cruiser Tire	Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32 mm
Wheel / RIM	Rims: 26" x 36H x 14G, Alloy	Bontrager Paradigm SL, Tubeless Ready, 24-hole, 21 mm width, Presta valve

Front	KT Coaster Brake	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 Tektro wave, 6-bolt, 160 mm

Front	--	--
Rear	--	--

Colors

Pearl white Aquamarine Jet Black

Crimson to Dark Carmine Fade Matte Lithium Grey

Length	--	--
Weight	15.4221 kg	56 - 10.55 kg

Features	--	--
Additional Details	Chainwheel : Steel, 42T x 1/2" x 1/8" Seat Clamp: Alloy, 28.6mm I.D., with Bolt Tubes: 26" x 2.25", Schrader Valve Chainguard: Steel, Painted	--