Sun Biscayne Tandem 7 vs Trek 2020 Madone SLR 7 Disc eTap

Compare Specifications of Sun Biscayne Tandem 7 and Trek 2020 Madone SLR 7 Disc eTap

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Sun Biscayne Tandem 7
Sun Biscayne Tandem 7

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Trek 2020 Madone SLR 7 Disc eTap
Trek 2020 Madone SLR 7 Disc eTap

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Technical Specifications
Drivetrain K.M.C. 1/2" x 1/8", Black (152 Links) --
Frame High Tensile Steel, TIG-Welded 700 Series OCLV Carbon, KVF (Kammtail Virtual Foil) tube shape, adjustable top tube IsoSpeed, invisible cable routing, control center, micro-adjust seat mast, precision water bottle placement, 3S aero chain keeper, DuoTrap S compatible, flat mount disc
Stem Alloy, 25.4 x 180mm Quill x 80mm Ext. x 25.4 Clamp, Black
Stoker Stem:Alloy, Adjustable Reach (4-Bolt Face) Black
Trek Madone aero, invisible cable routing
Handle Bar 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
Trek Madone adjustable aero VR-CF, OCLV Carbon, invisible cable routing
Fork 1-1/8" High Tensile Steel, Curved Legs, Double Eyelets Madone KVF full carbon, tapered carbon steerer, invisible cable routing, flat mount disc, carbon dropouts
Seatpost Alloy w/o Clamp, 25.6 x 350mm, Black Madone aero carbon seatmast cap, integrated light mount, 25 mm offset
Grip Foam, Black Bontrager Supertack Perf tape
Crankset -- SRAM Force
Pedals Slip Resistant Top, 9/16", Black --
Chain K.M.C. 1/2" x 3/32", Black (130 Links) SRAM Force, 12 speed
Shifters Shimano 7-Speed Revo Twist Shifter SRAM Force eTap AXS, 12 speed
Saddle Comfort Cruiser, Elastomer Suspension, Black Bontrager Aeolus Elite, austenite rails, 145 mm width
Headset Steel, 25.4 x 34 x 30mm, Black --
Derailleur Front -- SRAM Force eTap AXS, braze-on
Derailleur Rear Shimano RD-TX35 Tourney SRAM Force eTap AXS, Orbit chain management, 33 T max cog
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 --
Cassette -- SRAM Force XG-1270, 10-28, 12 speed
Chainrings -- 48 / 35
Bottom Bracket BC1.37'' x 24TPI, Steel, Caged Bearings
Spindle:Bolt Type, 119mm
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Stand Alloy, Center Mount, Black --
Tyres
Front Beach Bum 26 x 2.125", Black Wall Bontrager R3 Hard-Case Lite, aramid bead, 120 tpi, 700 x 25 c
Rear Beach Bum 26 x 2.125", Black Wall Bontrager R3 Hard-Case Lite, aramid bead, 120 tpi, 700 x 25 c
Wheel / RIM 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)
Bontrager Aeolus Pro 5, OCLV Carbon, Tubeless Ready, 19.5 mm rim width, 50 mm rim depth
Brakes
Front Alloy (Linear Pull) Black SRAM Force eTap AXS hydraulic disc
Rear Alloy (Linear Pull) Black SRAM Force eTap AXS hydraulic disc
Brake Lever Alloy (Linear Pull) Black / Silver SRAM Force eTap AXS, 12 speed
Suspension
Front -- --
Rear -- --
Colors Available
Colors -- Black / Silver-Grey Fade


Physical Specs
Length -- --
Weight 27.2 kg --
Overview
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
Axles
Front : 12 x 100 mm thru axle
Rear : 142 x 12 mm thru axle

Which one do you think is better? And why?
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