Sun Biscayne Tandem 7 vs Trek Domane AL 2 Disc

Load Carrying Capacity	--	Combined weight of bicycle, rider, and cargo of 275 pounds (125 kg)
Drivetrain	K.M.C. 1/2" x 1/8", Black (152 Links)	--
Frame	High Tensile Steel, TIG-Welded	100 Series Alpha Aluminum, tapered head tube, internal routing, fender mounts, DuoTrap S compatible, flat mount disc, 142 x 12 mm thru axle
Stem	Alloy, 25.4 x 180mm Quill x 80mm Ext. x 25.4 Clamp, Black Stoker Stem:Alloy, Adjustable Reach (4-Bolt Face) Black	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, 28.4" Wide x 7.3" Rise x 25.4 Clamp, Black Stoker Handlebar: Steel, 27" Wide x 10.8" Rise x 25.4mm Clamp, Black	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
Fork	1-1/8" High Tensile Steel, Curved Legs, Double Eyelets	Domane AL carbon, tapered alloy steerer, internal brake routing, fender mounts, flat mount disc, 12 x 100 mm thru axle
Seatpost	Alloy w/o Clamp, 25.6 x 350mm, Black	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	Foam, Black	--
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
Pedals	Slip Resistant Top, 9/16", Black	--
Chain	K.M.C. 1/2" x 3/32", Black (130 Links)	Shimano Sora HG71, 8 speed
Shifters	Shimano 7-Speed Revo Twist Shifter	Shimano Claris R2000, 8 speed
Saddle	Comfort Cruiser, Elastomer Suspension, Black	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
Headset	Steel, 25.4 x 34 x 30mm, Black	FSA Integrated, sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom
Derailleur Front	--	Shimano Claris R2000, 31.8 mm clamp
Derailleur Rear	Shimano RD-TX35 Tourney	Shimano Claris R2000, long cage, 34T max cog
Hub Front	Alloy, 36H x 14G with 3/8" Bolt-On Axle, Black (For Freewheel)	Formula RX-142 alloy, 6-bolt, Shimano 11-speed freehub, 142 x 12 mm thru axle
Hub Rear	Alloy, 36H x 14G x 3/8" Bolt-On Axle, Black	Formula RX-512 alloy, 6-bolt, 100 x 12 mm thru axle
Spoke	14G Stainless Steel with Brass Nipples	14g stainless steel
Cassette	--	Shimano HG31, 11-32, 8 speed
Bottom Bracket	BC1.37'' x 24TPI, Steel, Caged Bearings Spindle:Bolt Type, 119mm	Shimano UN30, 68mm, threaded cartridge, 110 mm spindle
Stand	Alloy, Center Mount, Black	--

Front	Beach Bum 26 x 2.125", Black Wall	Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700 x 32c
Rear	Beach Bum 26 x 2.125", Black Wall	Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700 x 32c
Wheel / RIM	Rims:26" x 36H x 14G, Red Front: 26" x 1.75 x 36H x 14G Alloy-Cruiser, Bolt-On Rear: 26" x 1.75 x 36H x 14G Alloy-Cruiser, (FOR FREEWHEEL)	Bontrager Affinity Disc, Tubeless Ready, 24-hole, 21 mm width, presta valve

Front	Alloy (Linear Pull) Black	Tektro C550 mechanical disc brake, dual piston, flat mount, 160 mm rotor
Rear	Alloy (Linear Pull) Black	Tektro C550 mechanical disc brake, dual piston, flat mount, 160 mm rotor
Brake Lever	Alloy (Linear Pull) Black / Silver	--

Front	--	--
Rear	--	--

Colors

--

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

Length	--	--
Weight	27.2 kg	10.55 kg

Features	--	- Rack Mounts - Endurance Fit - Endurance Geometry - Fender Compatible - Additional Tire Clearance
Additional Details	Captain Crank Left: 3-Piece Alloy, 170mm x 42T x 1/2" x 1/8", Black (For Diamond Square Cranks) Captain Crank Right: 3-Piece Alloy, 170mm, Black (For Diamond Square Cranks) Freewheel: Shimano TZ-21 (7-Speed) 14-28T Captain Crank Right: 3-Piece Alloy, 170mm, Black (For Diamond Square Cranks) Stoker Crank Left: 3-Piece Alloy, 170mm x 42T x 1/2" x 1/8", Black (For Diamond Square Cranks) Stoker Crank Right: 3-Piece Alloy, 170mm x 42T x 1/2" x 3/32", Black (For Diamond Square Cranks) Chainwheel: Steel, Silver Painted W/Plastic Chain Cover Pulley Adjuster:Eccentric BB Insert Seat Clamp: Alloy, 28.6mm I.D., with Double Bolt, Black Stoker Seat Clamp: Alloy, 34.9mm I.D., Black Front Fender: Steel, W/Single Strut, Painted Rear Fender: Steel, W/Single Strut, Painted Fender Set: Plastic, F&R W/Rubber Bump Guards, Silver	--