Felt TK3 vs Sun Brickell Tandem 7

Drivetrain	--	K.M.C. 1/2" x 1/8", Silver (152 Links)
Frame	Felt Aero Track UltraLite custom butted aluminum, hydroform smooth welded construction, BSA threaded bottom bracket shell, horizontal dropouts with cast steel surfaces Shock:	6061 Series Aluminum, TIG-Welded
Stem	Felt SuperLite, ±7° rise, Ø26.0 mm, 43 cm (650c):80 mm; Ø31.8 mm, 51 cm: 80 mm, 54 cm: 90 mm, 56 - 61 cm: 100 mm	Alloy W/Micro Adj. Angle, 25.4 x 180mm Quill x 90mm Ext., Black Stoker Stem: Alloy, Adjustable Reach (4-Bolt Face) Black
Handle Bar	Felt TK:K1,Ø26.0 mm, 43 cm (650c): 75 mm reach, 120 mm drop, 360 mm; Felt TKR-MSO, Ø31.8 mm, 51 cm: 360 mm, 54 - 58 cm: 390 mm, 61 cm: 420 mm; Felt	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	Felt Aero Track UHC Performance carbon fiber blades and dropouts, 1.125" aluminum steerer tube	1-1/8'' High Tensile Steel, Curved Legs, Double Eyelets
Seatpost	Felt TkR, Ø27.2 mm x 300 mm	Alloy W/Integrated Clamp, 28.6 x 350mm, Black
Grip	--	Kraton Rubber-Gel, 130mm, 2-Tone Black & Grey
Crankset	Felt Track, 48T x 3/32" chainring 144 mm BCD, 43 cm (650c): 155 mm, 51 - 54 cm: 165 mm, 56 cm: 167.5 mm, 58 - 61 cm: 170 mm	--
Pedals	--	Slip Resistant Top, 9/16", Black
Chain	KMC Z610HX 1-speed 3/32"	K.M.C. 1/2" x 3/32", Silver (130 Links)
Shifters	--	Rear Shifter: Shimano Tourney 7-Speed Twist Shifter
Saddle	Felt SuperLite; 43 (650c): Felt K:1 SuperLite	Comfort Cruiser, Elastomer Suspension, Black
Headset	FSA IS-21 integrated, 1.125" sealed cartridge bearing with aluminum 9 mm cone spacer, Felt top cap	Semi Integrated, Steel, 25.4 x 44 x 30mm, Black
Derailleur Rear	--	Shimano RD-TX35 Tourney
Hub Front	Felt TkR4, sealed cartridge bearing, double-threaded fixed / fixed, 120 mm with track nuts, 28H	Alloy, 36H x 12G x 3/8" Bolt-On Axle, Black
Hub Rear	Felt TkR4, sealed cartridge bearing, 100 mm with track nuts, 28H	Alloy, 36H x 12G x 3/8" Bolt-On Axle, Black
Spoke	2.0 mm stainless steel	12G Stainless Steel with Brass Nipples
Cassette	15T x 3/32" with lockring	--
Bottom Bracket	--	BC1.37'' x 24TPI, Steel, Caged Bearings Spindle: Square Taper (JIS), Bolt Type, 68 x 110mm
Stand	--	Alloy, Center Mount, Black

Front	Vittoria Zaffiro Slick, 700 c x 23 c; 43 cm (650 c): Vittoria Rubino III 650 c x 23 c	Kenda Komfort 26 x 1.95", Black Wall,26" x 1.90-2.35'', Schrader Valve
Rear	Vittoria Zaffiro Slick, 700 c x 23 c; 43 cm (650 c): Vittoria Rubino III 650 c x 23 c	Kenda Komfort 26 x 1.95", Black Wall,26" x 1.90-2.35'', Schrader Valve
Wheel / RIM	Felt TkR4, 19 mm inner width, 30 mm depth	Rims: 26" x 36H x 12G, Alloy, Black Front: 26" x 1.75 x 36H x 12G Alloy-Cruiser, Bolt-On Rear: 26" x 1.75 x 36H x 12G Alloy-Cruiser (For Freewheel)

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

Front	--	--
Rear	--	--

Colors

Matte Black Shadow Matte Silver Matte Aqua

--

Length	--	--
Weight	8.1 kg	22.6 kg

Features	--	--
Additional Details	Bar Tape : Felt Gel tape with Felt Bubble-Tech F-Wing bar end plugs Bottom Bracket : Sealed cartridge, BSA threaded, square taper axle, 68 x 110 mm Seatpost Clamp : Felt single bolt, Ø30.6 mm	Captain Crank Left: 3-Piece Alloy, 170mm x 42T x 1/2" x 1/8", 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, Black (4-Bolt x 104mm BCD) W/Plastic Chain Cover Pulley Adjuster:Eccentric BB Insert Seat Clamp: Alloy, 34.9mm I.D., with Double Bolt, Black Stoker Seat Clamp: Alloy, 34.9mm I.D., Black Front Fender: Plastic W/Rubber Bump Guards, Silver Rear Fender: Plastic W/Rubber Bump Guards, Silver Fender Set: Plastic, F&R W/Rubber Bump Guards, Silver