Cannondale CAAD Optimo 3 vs Sun Biscayne Tandem 7

Drivetrain	--	K.M.C. 1/2" x 1/8", Black (152 Links)
Frame	SmartForm C2 Alloy, SAVE, tapered headtube, fender mounts, 130x10mm QR	High Tensile Steel, TIG-Welded
Stem	6061 Alloy, 31.8, 7 degree	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	6061 Alloy, Compact	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	CAAD Optimo Full Carbon, 1-1/8" to 1-1/4" steerer, fender mounts, 100x9mm QR	1-1/8" High Tensile Steel, Curved Legs, Double Eyelets
Seatpost	Cannondale 4, 6061 Alloy, 27.2x350mm	Alloy w/o Clamp, 25.6 x 350mm, Black
Grip	Cannondale Bar Tape, 3.5mm	Foam, Black
Crankset	FSA Vero Alloy, 50/34	--
Pedals	--	Slip Resistant Top, 9/16", Black
Chain	KMC X9, 9-speed	K.M.C. 1/2" x 3/32", Black (130 Links)
Shifters	Shimano Sora, 9-speed	Shimano 7-Speed Revo Twist Shifter
Saddle	Cannondale Stage CX	Comfort Cruiser, Elastomer Suspension, Black
Headset	CAAD Optimo, 1-1/8" to 1-1/4", 25mm top cap	Steel, 25.4 x 34 x 30mm, Black
Derailleur Front	Shimano Sora, 31.8 clamp	--
Derailleur Rear	Shimano Sora GS	Shimano RD-TX35 Tourney
Hub Front	Formula RB-31	Alloy, 36H x 14G with 3/8" Bolt-On Axle, Black (For Freewheel)
Hub Rear	Formula RB-32	Alloy, 36H x 14G x 3/8" Bolt-On Axle, Black
Spoke	Stainless Steel, 14g	14G Stainless Steel with Brass Nipples
Cassette	Shimano HG50, 11-30, 9-speed	--
Bottom Bracket	Cartridge, square taper	BC1.37'' x 24TPI, Steel, Caged Bearings Spindle:Bolt Type, 119mm
Stand	--	Alloy, Center Mount, Black

Front	Vittoria Zaffiro, 700x25c	Beach Bum 26 x 2.125", Black Wall
Rear	Vittoria Zaffiro, 700x25c	Beach Bum 26 x 2.125", Black Wall
Wheel / RIM	RS 3.0, 24h front, 28h rear	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	Promax RC-452, dual pivot calipers	Alloy (Linear Pull) Black
Rear	Promax RC-452, dual pivot calipers	Alloy (Linear Pull) Black
Brake Lever	Shimano Sora	Alloy (Linear Pull) Black / Silver

Front	--	--
Rear	--	--

Colors

Black

--

Length	--	--
Weight	--	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