Marin Stinson 7 ST vs Sun Biscayne Tandem 7

Drivetrain	--	K.M.C. 1/2" x 1/8", Black (152 Links)
Frame	Series 1 Comfort, 6061 Aluminum, 27.5” Wheels, Super-Low Step Design, Comfort Control Geometry, Fender and Rack Mounts	High Tensile Steel, TIG-Welded
Stem	Aluminum Quill	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	Marin Alloy, 50 mm Rise	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	CrMo Steel, Straight Blade, Fender and Rack Eyelets	1-1/8" High Tensile Steel, Curved Legs, Double Eyelets
Seatpost	27.2 mm Marin Alloy	Alloy w/o Clamp, 25.6 x 350mm, Black
Grip	Kraton	Foam, Black
Crankset	Forged Aluminum, Dual Ring Guard	--
Pedals	Marin Platform	Slip Resistant Top, 9/16", Black
Chain	KMC Z50	K.M.C. 1/2" x 3/32", Black (130 Links)
Shifters	Shift Lever : Shimano Revo Twist-Shift 1 x 7-Speed	Shimano 7-Speed Revo Twist Shifter
Saddle	Marin Comfort	Comfort Cruiser, Elastomer Suspension, Black
Headset	FSA, Threaded	Steel, 25.4 x 34 x 30mm, Black
Derailleur Rear	Shimano Tourney 7-Speed	Shimano RD-TX35 Tourney
Hub Front	Forged Aluminum Alloy, 32H	Alloy, 36H x 14G with 3/8" Bolt-On Axle, Black (For Freewheel)
Hub Rear	Forged Aluminum Alloy, 32H	Alloy, 36H x 14G x 3/8" Bolt-On Axle, Black
Spoke	14 g Stainless Steel	14G Stainless Steel with Brass Nipples
Cassette	SunRace 7-Speed, 11-34T	--
Bottom Bracket	--	BC1.37'' x 24TPI, Steel, Caged Bearings Spindle:Bolt Type, 119mm
Stand	--	Alloy, Center Mount, Black

Front	Vee Tire Speedster, 27.5”x 2.0”, Puncture Protection	Beach Bum 26 x 2.125", Black Wall
Rear	Vee Tire Speedster, 27.5”x 2.0”, Puncture Protection	Beach Bum 26 x 2.125", Black Wall
Wheel / RIM	Marin Aluminum Double Wall, Machined Sidewall	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)

Front	Forged Alloy Linear Pull	Alloy (Linear Pull) Black
Rear	Forged Alloy Linear Pull	Alloy (Linear Pull) Black
Brake Lever	Aluminum	Alloy (Linear Pull) Black / Silver

Front	--	--
Rear	--	--

Colors

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Length	--	--
Weight	--	27.2 kg

Features	- Series 1 Aluminum Frame - Comfort Control Geometry - 27.5” Tires - Adjustable Cockpit	--
Additional Details	Bottom Bracket : Sealed Cartridge Bearings, Square Taper	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