Opus Horizon AL GRX vs Sun Biscayne Tandem CB

Compare Specifications of Opus Horizon AL GRX and Sun Biscayne Tandem CB

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Opus Horizon AL GRX
Opus Horizon AL GRX

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Sun Biscayne Tandem CB
Sun Biscayne Tandem CB

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Technical Specifications
Frame Meta 30 aluminum High Tensile Steel, TIG-Welded
Stem Promax Alloy, 25.4 x 180mm Quill x 80mm Ext. x 25.4 Clamp, Black
Handle Bar X-Race Aero 16° flare Steel, 28.4" Wide x 7.3" Rise x 25.4 Clamp, Black
Fork Full carbon tapered 1-1/2 to 1-1/8 in --
Seatpost Promax alloy 27.2 x 300 --
Grip Velo VexGel diamond Foam, Black
Crankset Shimano GRX FC-RX600 --
Pedals -- Slip Resistant Top, 9/16", Black
Chain Shimano HG11 K.M.C. 1/2" x 1/8", Black (130 Links)
Shifters Shimano GRX-600 2x11 --
Saddle Selle Italia X3 XP Keramid Comfort Cruiser, Elastomer Suspension, Black
Headset FSA Orbit integrated sealed Steel, 25.4 x 34 x 30mm, Black
Derailleur Front Shimano GRX-810 --
Derailleur Rear Shimano GRX-810 --
Hub Front -- Shimano CB-E110 Coaster Brake, 36H x 14G, Black
Hub Rear Alex Bear Pawls through axle 12 mm fr/rr Alloy, 36H x 14G x 3/8" Bolt-On Axle, Black
Spoke -- 14G Stainless Steel with Brass Nipples
Cassette Shimano 11-34 --
Chainrings 46-30 --
Sprocket -- 19T x 1/2'' x 1/8''
Bottom Bracket Shimano sealed BSC threaded --
Stand -- Alloy, Center Mount, Black
Tyres
Front Kenda Flintridge Pro 700 x 35 CSK Beach Bum 26 x 2.125", Black Wall
Rear Kenda Flintridge Pro 700 x 35 CSK Beach Bum 26 x 2.125", Black Wall
Wheel / RIM Weinmann U28TL Rims: 26" x 36H x 14G, Red
Brakes
Front Shimano GRX-400 hydraulic disc Alloy (Linear Pull) Black
Rear -- Shimano CB-E110 Internal Coaster Brake, Black
Brake Lever Shimano GRX-600 Alloy (Linear Pull) Black / Silver
Suspension
Front -- --
Rear -- --
Colors Available
Colors Titanium Silver Metallic Red


Physical Specs
Length -- --
Weight 10.1 kg 27.2 kg
Overview
Features - Proven Horizon Progressive Geometry to master all surfaces
- Full carbon fork with triple mounts for bottle or bags
- 11 Speed Shimano GRX Group with full hydraulic brakes
- Big clearance for 700 x 45 tires, can be used with 650 x 50 wheels and tires
- Rear rack and fender mounts, 5 bottle and top tube mounts
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Additional Details Sizes: S-M-L
Top tube bag mounts
Front and rear rack and fender mounts
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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