Jamis Allegro A3 Step-Over vs Sun Brickell Tandem 7

Compare Specifications of Jamis Allegro A3 Step-Over and Sun Brickell Tandem 7

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Jamis Allegro A3 Step-Over
Jamis Allegro A3 Step-Over

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Sun Brickell Tandem 7
Sun Brickell Tandem 7

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Technical Specifications
Drivetrain -- K.M.C. 1/2" x 1/8", Silver (152 Links)
Frame Size Specific Design 6061 aluminum with fast back rear triangle, internal cable routing, hydro-formed top and down tube, taper gauge “S” bend stays, kickstand mount, replaceable derailleur hanger and fender/rack eyelets 6061 Series Aluminum, TIG-Welded
Stem Jamis alloy hi-rise, quill type, 35˚ rise, 80mm extension, 180mm high, 150mm (14-16”), 180mm (18”) Alloy W/Micro Adj. Angle, 25.4 x 180mm Quill x 90mm Ext., Black
Stoker Stem: Alloy, Adjustable Reach (4-Bolt Face) Black
Handle Bar Jamis Riser bar, aluminum, 25.4 x 10˚ sweep x 40mm rise x 600mm 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 Hi-Ten tapered straight blade unicrown with bulge butted steerer, low-rider carry mounts and forged dropouts with 2 fender eyelets 1-1/8'' High Tensile Steel, Curved Legs, Double Eyelets
Seatpost Jamis alloy micro-adjust, 27.2 x 350mm, alloy clamp with QR seatpin Alloy W/Integrated Clamp, 28.6 x 350mm, Black
Grip Anatomic double density kraton Kraton Rubber-Gel, 130mm, 2-Tone Black & Grey
Crankset Forged alloy, 48/38/28T, 170mm with chain guard --
Pedals Platform style, steel cage/resin body Slip Resistant Top, 9/16", Black
Chain KMC Z51 K.M.C. 1/2" x 3/32", Silver (130 Links)
Shifters Shimano EZ-Fire Plus ST-EF500 shifters, 21-speed Rear Shifter: Shimano Tourney 7-Speed Twist Shifter
Saddle Jamis Touring Women’s with SL cover Comfort Cruiser, Elastomer Suspension, Black
Headset Internal cup, threaded, 1 1/8” Semi Integrated, Steel, 25.4 x 44 x 30mm, Black
Derailleur Rear Shimano RD-TY300 rear and Shimano FD-TY510 top swing front Shimano RD-TX35 Tourney
Hub Front -- Alloy, 36H x 12G x 3/8" Bolt-On Axle, Black
Hub Rear -- Alloy, 36H x 12G x 3/8" Bolt-On Axle, Black
Spoke -- 12G 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: Square Taper (JIS), Bolt Type, 68 x 110mm
Stand -- Alloy, Center Mount, Black
Tyres
Front Kenda Eurotrek K-197, 700 x 32c Kenda Komfort 26 x 1.95", Black Wall,26" x 1.90-2.35'', Schrader Valve
Rear Kenda Eurotrek K-197, 700 x 32c Kenda Komfort 26 x 1.95", Black Wall,26" x 1.90-2.35'', Schrader Valve
Wheel / RIM Double wall alloy rims, 32H, alloy hubs with QR and 14g stainless steel spokes Rims: 26" x 36H x 12G, Alloy, Black
Front: 26" x 1.75 x 36H x 12G Alloy-Cruiser, Bolt-On
Rear: 26" x 1.75 x 36H x 12G Alloy-Cruiser (For Freewheel)
Brakes
Front Promax TX-121 linear-pull with front power modulator and Shimano levers Alloy (Linear Pull) Black
Rear Promax TX-121 linear-pull with front power modulator and Shimano levers Alloy (Linear Pull) Black
Brake Lever -- Alloy (Linear Pull) Black / Silver
Suspension
Front -- --
Rear -- --
Colors Available
Colors Ano Nickel
Robins Egg
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Physical Specs
Length -- --
Weight 12 kg 22.6 kg
Overview
Features -- --
Additional Details Sizes : 14”, 16”, 18” Captain Crank Left: 3-Piece Alloy, 170mm x 42T x 1/2" x 1/8", 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, Black (4-Bolt x 104mm BCD) W/Plastic Chain Cover
Pulley Adjuster:Eccentric BB Insert
Seat Clamp: Alloy, 34.9mm I.D., with Double Bolt, Black
Stoker Seat Clamp: Alloy, 34.9mm I.D., Black
Front Fender: Plastic W/Rubber Bump Guards, Silver
Rear Fender: Plastic W/Rubber Bump Guards, Silver
Fender Set: Plastic, F&R W/Rubber Bump Guards, Silver

Which one do you think is better? And why?
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