Jamis Starlite 20 vs Sun Biscayne Tandem 7

Drivetrain	--	K.M.C. 1/2" x 1/8", Black (152 Links)
Frame	Lightweight 6061 aluminum sport comfort frame design with full-length chainguard, painted fenders and training wheels	High Tensile Steel, TIG-Welded
Stem	Alloy with front facing removable cap, 40mm extension x 130mm 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	Swept-back comfort design, electro-plated black finish, with safety bell	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	Comfort unicrown, hi-tensile steel, radiused blades	1-1/8" High Tensile Steel, Curved Legs, Double Eyelets
Seatpost	Pillar, electro-plated black finish, 27.2 x 250mm, with 31.8mm alloy clamp	Alloy w/o Clamp, 25.6 x 350mm, Black
Grip	Embossed & stitched vinyl cover over comfort foam	Foam, Black
Crankset	Cold-forged steel, electro-plated black finish, 4 1/2” arms, 36T chainring	--
Pedals	Comfort style platform pedal with non-slip TPE insert	Slip Resistant Top, 9/16", Black
Chain	KMC Z410	K.M.C. 1/2" x 3/32", Black (130 Links)
Shifters	--	Shimano 7-Speed Revo Twist Shifter
Saddle	Jamis Youth Comfort with embossed vinyl and single loop springs	Comfort Cruiser, Elastomer Suspension, Black
Headset	Standard threaded type, 22.2mm	Steel, 25.4 x 34 x 30mm, Black
Derailleur Rear	--	Shimano RD-TX35 Tourney
Hub Front	--	Alloy, 36H x 14G with 3/8" Bolt-On Axle, Black (For Freewheel)
Hub Rear	--	Alloy, 36H x 14G x 3/8" Bolt-On Axle, Black
Spoke	--	14G Stainless Steel with Brass Nipples
Bottom Bracket	OPC bearing type, VP-B35	BC1.37'' x 24TPI, Steel, Caged Bearings Spindle:Bolt Type, 119mm
Stand	--	Alloy, Center Mount, Black

Front	Sport Comfort, 20” x 1.75”, black with whitewalls	Beach Bum 26 x 2.125", Black Wall
Rear	Sport Comfort, 20” x 1.75”, black with whitewalls	Beach Bum 26 x 2.125", Black Wall
Wheel / RIM	Alloy 36H rims with steel front and Hi-Stop coaster brake rear hubs, 14G nickel-plated spokes	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	Alloy linear pull type and Hi-Stop coaster brake (both rear only) with alloy lever	Alloy (Linear Pull) Black
Rear	Alloy linear pull type and Hi-Stop coaster brake (both rear only) with alloy lever	Alloy (Linear Pull) Black
Brake Lever	--	Alloy (Linear Pull) Black / Silver

Front	--	--
Rear	--	--

Colors

Vivid Violet Blue Lagoon

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Length	--	--
Weight	10.7 kg	27.2 kg

Features	--	--
Additional Details	Sizes : 10”	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