Specialized Sirrus X 3.0 vs Sun Biscayne Tandem 7

Drivetrain	--	K.M.C. 1/2" x 1/8", Black (152 Links)
Frame	Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, Plug + Play rack/fender mounts	High Tensile Steel, TIG-Welded
Stem	3D-forged alloy, 31.8mm, 7-degree rise	Alloy, 25.4 x 180mm Quill x 80mm Ext. x 25.4 Clamp, Black Stoker Stem:Alloy, Adjustable Reach (4-Bolt Face) Black
Handle Bar	Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm	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
Fork	A1 Premium Aluminum, flat-mount disc, Plug + Play fender mounts, low rider rack mounts	1-1/8" High Tensile Steel, Curved Legs, Double Eyelets
Seatpost	Alloy, 12mm offset, 2-bolt clamp, 27.2mm	Alloy w/o Clamp, 25.6 x 350mm, Black
Grip	Specialized Neutralizer, Body Geometry, locking grip	Foam, Black
Crankset	Forged aluminum arms, 24mm spindle, Narrow-wide steel chainring 40t, chainguard	--
Pedals	Specialized Body Geometry Fitness, platform, plastic	Slip Resistant Top, 9/16", Black
Chain	KMC X9, 9-speed w/ Missing Link™	K.M.C. 1/2" x 3/32", Black (130 Links)
Shifters	MicroSHIFT SL-M9295, 9-speed	Shimano 7-Speed Revo Twist Shifter
Saddle	Bridge Sport, Steel rails, 155/143mm	Comfort Cruiser, Elastomer Suspension, Black
Headset	--	Steel, 25.4 x 34 x 30mm, Black
Derailleur Rear	microSHIFT Advent, 1x9 w/ clutch	Shimano RD-TX35 Tourney
Hub Front	Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h	Alloy, 36H x 14G with 3/8" Bolt-On Axle, Black (For Freewheel)
Hub Rear	Alloy, 6-bolt disc, 8-/9-speed freehub, loose ball bearing, quick-release, 32h	Alloy, 36H x 14G x 3/8" Bolt-On Axle, Black
Spoke	Stainless, 14g	14G Stainless Steel with Brass Nipples
Cassette	microSHIFT Advent, 9-speed, 11-42t	--
Chainrings	40T	--
Bottom Bracket	Threaded BSA 68mm	BC1.37'' x 24TPI, Steel, Caged Bearings Spindle:Bolt Type, 119mm
Stand	--	Alloy, Center Mount, Black

Front	Pathfinder Sport, 700x42	Beach Bum 26 x 2.125", Black Wall
Rear	Pathfinder Sport, 700x42	Beach Bum 26 x 2.125", Black Wall
Wheel / RIM	700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h	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)
Tube	Standard 40mm PV 700x32-50	--

Front	Tektro HD-R280, hydraulic disc, 160 mm rotor	Alloy (Linear Pull) Black
Rear	Tektro HD-R280, hydraulic disc, resin pads, flat-mount, 160mm	Alloy (Linear Pull) Black
Brake Lever	--	Alloy (Linear Pull) Black / Silver

Front	--	--
Rear	--	--

Colors

Gloss Birch / Satin Taupe Reflective Satin Maroon / Black / Satin Black Reflective Gloss Metallic Obsidian / Satin Black Reflective

--

Length	--	--
Weight	11.4 kg	27.2 kg

Features	--	--
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