Cervelo R-Series Force eTap AXS Disc vs Sun Biscayne Tandem CB

Compare Specifications of Cervelo R-Series Force eTap AXS Disc and Sun Biscayne Tandem CB

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Cervelo R-Series Force eTap AXS Disc
Cervelo R-Series Force eTap AXS Disc

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Sun Biscayne Tandem CB
Sun Biscayne Tandem CB

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Technical Specifications
Frame -- High Tensile Steel, TIG-Welded
Stem Cervélo Ultra Light Alloy Stem Alloy, 25.4 x 180mm Quill x 80mm Ext. x 25.4 Clamp, Black
Handle Bar Cervélo AB07 Ultra Light Alloy Bar Steel, 28.4" Wide x 7.3" Rise x 25.4 Clamp, Black
Fork Cervélo All-Carbon, Tapered R-Series Fork for Disc --
Seatpost Cervélo Carbon SP19 --
Grip -- Foam, Black
Crankset SRAM Force DUB 48/35 --
Pedals -- Slip Resistant Top, 9/16", Black
Chain SRAM Force 12 spd K.M.C. 1/2" x 1/8", Black (130 Links)
Shifters SRAM Force eTap AXS HRD 12 spd --
Saddle Prologo Zero II STN Comfort Cruiser, Elastomer Suspension, Black
Headset FSA IS2 1-1/8 x 1-1/2 Steel, 25.4 x 34 x 30mm, Black
Derailleur Front SRAM Force eTap AXS 12 spd --
Derailleur Rear SRAM Force eTap AXS 12 spd --
Hub Front -- Shimano CB-E110 Coaster Brake, 36H x 14G, Black
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 --
Sprocket -- 19T x 1/2'' x 1/8''
Stand -- Alloy, Center Mount, Black
Tyres
Front Vittoria Rubino Pro TLR G 25c Beach Bum 26 x 2.125", Black Wall
Rear Vittoria Rubino Pro TLR G 25c Beach Bum 26 x 2.125", Black Wall
Wheel / RIM 1AER D3 38 mm Disc Rims: 26" x 36H x 14G, Red
Brakes
Front -- Alloy (Linear Pull) Black
Rear -- Shimano CB-E110 Internal Coaster Brake, Black
Brake Lever -- Alloy (Linear Pull) Black / Silver
Suspension
Front -- --
Rear -- --
Colors Available
Colors -- Metallic Red


Physical Specs
Length -- --
Weight -- 27.2 kg
Overview
Features -- --
Additional Details Bottom Bracket : SRAM DUB BBright

Brake caliper : Sram Force HRD

Brake Rotor : SRAM CenterLine XR 160 mm
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

Which one do you think is better? And why?
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