Jamis DXT A3 Step-Over vs Sun Biscayne Tandem 7

Compare Specifications of Jamis DXT A3 Step-Over and Sun Biscayne Tandem 7

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Jamis DXT A3 Step-Over
Jamis DXT A3 Step-Over

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Sun Biscayne Tandem 7
Sun Biscayne Tandem 7

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Technical Specifications
Drivetrain -- K.M.C. 1/2" x 1/8", Black (152 Links)
Frame Size Specific Design 6061 aluminum with fast back rear triangle, 1 1/8” head tube, internal cable routing, chain stays disc brake mounts, 34.9mm seat tube, kickstand mount, replaceable derailleur hanger, fender/rack eyelets and ring lock mount eyelets. High Tensile Steel, TIG-Welded
Stem Jamis Trekking, 3D forged alloy, 15˚ rise, Length-60mm (15-17”), 90mm (19-23”) 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 Jamis Riser bar, double-butted aluminum, 25.4 x 10˚ sweep x 20mm rise x 640mm (15”), 660mm (17-23”) 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 SR/Suntour NVX-DS, aluminum lowers, coil spring, 28mm stanchions, 1-1/8” steerer, 75mm travel> 1-1/8" High Tensile Steel, Curved Legs, Double Eyelets
Seatpost Jamis alloy micro-adjust, 31.6 x 350mm alloy clamp with QR seatpin Alloy w/o Clamp, 25.6 x 350mm, Black
Grip ERGO Type Grip Foam, Black
Crankset Forged alloy crank with chain guard, 48/38/28T, 170mm --
Pedals Platform style Slip Resistant Top, 9/16", Black
Chain KMC Z7 K.M.C. 1/2" x 3/32", Black (130 Links)
Shifters Shiftlevers : Shimano Rapid Fire SL-EF500, 21-speed Shimano 7-Speed Revo Twist Shifter
Saddle Jamis Touring Women’s with SL cover Comfort Cruiser, Elastomer Suspension, Black
Headset Internal Cup, threadless, 1 1/8” Steel, 25.4 x 34 x 30mm, Black
Derailleur Rear -- Shimano RD-TX35 Tourney
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 Shimano CS-HG200, 7-speed, 12-32T --
Bottom Bracket VP sealed cartridge, 68 x 122.5mm BC1.37'' x 24TPI, Steel, Caged Bearings
Spindle:Bolt Type, 119mm
Stand -- Alloy, Center Mount, Black
Tyres
Front CST Dual Sport Tire, 700 x 42c Beach Bum 26 x 2.125", Black Wall
Rear CST Dual Sport Tire, 700 x 42c Beach Bum 26 x 2.125", Black Wall
Wheel / RIM Alex TD26 disc specific double wall alloy rims, 32H, alloy disc hubs with QR and 14g stainless steel spokes 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)
Brakes
Front Tektro MD-280 cable-actuated disc brakes with 160mm stainless 6-bolt rotors Alloy (Linear Pull) Black
Rear Tektro MD-280 cable-actuated disc brakes with 160mm stainless 6-bolt rotors Alloy (Linear Pull) Black
Brake Lever Shimano EF41 levers Alloy (Linear Pull) Black / Silver
Suspension
Front -- --
Rear -- --
Colors Available
Colors Ano Seafoam --


Physical Specs
Length -- --
Weight 14 kg 27.2 kg
Overview
Features -- --
Additional Details Sizes : 14”, 18”, 20” 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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