Felt IA Advanced Ultegra vs Sun Biscayne Tandem 7

Drivetrain	--	K.M.C. 1/2" x 1/8", Black (152 Links)
Frame	Felt Integrated Aero Tri Disc UHC Advanced + TeXtreme carbon fiber, MMC with Inside Out construction, 68 mm BSA threaded bottom bracket shell, 12 x 142 mm with Syntace style thru axle, flat mount disc brake standard, horizontal dropouts, replaceable rear derailleur hanger, internal mechanical or electronic cable routing	High Tensile Steel, TIG-Welded
Stem	Felt Dagger 31.8 Cold Forged	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	Devox Bayonet 3.1 base bar with Devox Ergomod extensions, ¯31.8 mm, 48 - 51 cm: 390 mm, 54 - 58 cm: 420 mm	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 Dagger Disc UHC Advanced carbon fiber monocoque construction, 1.125" carbon fiber steerer, upper cover, blades, dropouts, crown; internal disc-brake routing, flat-mount disc brake standard, 12 x 100 mm thru axle	1-1/8" High Tensile Steel, Curved Legs, Double Eyelets
Seatpost	Felt VariMount Aero Tri UHC Advanced carbon fiber, 300 mm length	Alloy w/o Clamp, 25.6 x 350mm, Black
Grip	--	Foam, Black
Crankset	Shimano Ultegra R8000, 52/36T, 48 -51 cm: 165 mm, 54 -56 cm: 170 mm, 58 cm: 172.5 mm	--
Pedals	--	Slip Resistant Top, 9/16", Black
Chain	Shimano 11-speed	K.M.C. 1/2" x 3/32", Black (130 Links)
Shifters	microSHIFT TT 11-speed	Shimano 7-Speed Revo Twist Shifter
Saddle	ISM PS1.0	Comfort Cruiser, Elastomer Suspension, Black
Headset	FSA integrated, 1.125" 36¡/45¡ sealed ACB cartridge bearings MR122 {873E-RS}, split top race H2145 {No.11AGY-2} with Felt compression device	Steel, 25.4 x 34 x 30mm, Black
Derailleur Front	Shimano Ultegra R8000 braze-on	--
Derailleur Rear	Shimano Ultegra R8000 11-speed short cage	Shimano RD-TX35 Tourney
Hub Front	Devox RSL3D, sealed cartridge bearing, 11-speed, 12 x 142 mm thru axle, 6-bolt, 28H	Alloy, 36H x 14G with 3/8" Bolt-On Axle, Black (For Freewheel)
Hub Rear	Devox RSL3D, sealed cartridge bearing, 12 x 100 mm thru axle, 6-bolt, 28H	Alloy, 36H x 14G x 3/8" Bolt-On Axle, Black
Spoke	2.0 mm stainless steel	14G Stainless Steel with Brass Nipples
Cassette	Shimano 11-speed, 11-28T	--
Bottom Bracket	--	BC1.37'' x 24TPI, Steel, Caged Bearings Spindle:Bolt Type, 119mm
Stand	--	Alloy, Center Mount, Black

Front	Continental Grand Sport Race folding, 700 x 25c	Beach Bum 26 x 2.125", Black Wall
Rear	Continental Grand Sport Race folding, 700 x 25c	Beach Bum 26 x 2.125", Black Wall
Wheel / RIM	Devox 30A Disc, tubeless ready, 19 mm width, 30 mm depth	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	TRP HD-T910 hydraulic disc, 140 mm rotor	Alloy (Linear Pull) Black
Rear	TRP HD-T910 hydraulic disc, 140 mm rotor	Alloy (Linear Pull) Black
Brake Lever	TRP HD-T910 hydraulic	Alloy (Linear Pull) Black / Silver

Front	--	--
Rear	--	--

Colors

Matte TeXtreme (White Geo) Matte TeXtreme (Spatter, Gloss Charcoal)

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Length	--	--
Weight	9.93 kg	27.2 kg

Features	--	--
Additional Details	Bar tape : Devox Gel tape and new EVA arm pads with anti-microbial cover Bottom Bracket : Shimano Hollowtech BSA threaded Seatpost Clamp : Felt Internaloc integrated with titanium bolts Thru axle : Front: 12 x 100 x 118, thread: M12 x 1.5P x 13L, Maxle; Rear: 12 x 142 x 163 (163L + 9 head = 172 total), thread: M12 x 1.0P x 19L, Syntace	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
Accessories	Carbon assembly paste Aero seatpost slot covers IA CALpac 2.0 IA BTSpac storage box	--