Bottecchia 109 TY500 Disk Mechanic 21S 29 vs Sun Biscayne Tandem 7

Compare Specifications of Bottecchia 109 TY500 Disk Mechanic 21S 29 and Sun Biscayne Tandem 7

Selected Bikes

Bottecchia 109 TY500 Disk Mechanic 21S 29
Bottecchia 109 TY500 Disk Mechanic 21S 29

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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 MTB 29 Alu 6061 IDF High Tensile Steel, TIG-Welded
Stem -- 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 -- 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 RAXE X8.0 alu 100 mm 29" 1-1/8" High Tensile Steel, Curved Legs, Double Eyelets
Seatpost -- Alloy w/o Clamp, 25.6 x 350mm, Black
Grip -- Foam, Black
Pedals -- Slip Resistant Top, 9/16", Black
Chain Chainweel : Shimano FC 42-34-24 K.M.C. 1/2" x 3/32", Black (130 Links)
Shifters -- Shimano 7-Speed Revo Twist Shifter
Saddle -- Comfort Cruiser, Elastomer Suspension, Black
Headset -- 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
Bottom Bracket -- BC1.37'' x 24TPI, Steel, Caged Bearings
Spindle:Bolt Type, 119mm
Stand -- Alloy, Center Mount, Black
Tyres
Front CST/VRB 29 x 2,25 Beach Bum 26 x 2.125", Black Wall
Rear CST/VRB 29 x 2,25 Beach Bum 26 x 2.125", Black Wall
Wheel / RIM Raxe 29 Disk DB 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 Pro Max Dsk 300 Disk Alloy (Linear Pull) Black
Rear Pro Max Dsk 300 Disk Alloy (Linear Pull) Black
Brake Lever -- Alloy (Linear Pull) Black / Silver
Suspension
Front -- --
Rear -- --
Colors Available
Colors c22 Black Yellow
c67 Black Blue
c92 Anthracite Orange
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Physical Specs
Length -- --
Weight -- 27.2 kg
Overview
Features -- --
Additional Details Change : Shimano TY500 21s
Commands : Shimano ST EF 41 21s
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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