Prevelo Alpha Four vs Sun Brickell Tandem 7

Compare Specifications of Prevelo Alpha Four and Sun Brickell Tandem 7

Selected Bikes

Prevelo Alpha Four
Prevelo Alpha Four

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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 6061 heat treated aluminum alloy custom formed tubing 6061 Series Aluminum, TIG-Welded
Stem Aluminum 35mm extension 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 Prevelo aluminum big bore - 580mm width x 40mm rise with 31.8mm to 22mm taper 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 Aluminum alloy blades with chromoly steerer tube - 35mm rake 1-1/8'' High Tensile Steel, Curved Legs, Double Eyelets
Seats Aluminum alloy with toolless adjustment --
Seatpost -- Alloy W/Integrated Clamp, 28.6 x 350mm, Black
Grip Kraton rubber Kraton Rubber-Gel, 130mm, 2-Tone Black & Grey
Crankset Prevelo anodized alloy 3-piece square taper with 130MM crank length. --
Pedals Composite with 9/16 chromoly axle Slip Resistant Top, 9/16", Black
Chain -- K.M.C. 1/2" x 3/32", Silver (130 Links)
Shifters Microshift Thumb Shifter Rear Shifter: Shimano Tourney 7-Speed Twist Shifter
Saddle Prevelo big kid saddle Comfort Cruiser, Elastomer Suspension, Black
Headset 1 1/8" threadless Semi Integrated, Steel, 25.4 x 44 x 30mm, Black
Derailleur Rear 9-Speed Microshift Shimano RD-TX35 Tourney
Hub Front Lightweight alloy 1-piece forged CNC Alloy, 36H x 12G x 3/8" Bolt-On Axle, Black
Hub Rear Lightweight alloy 1-piece forged CNC Alloy, 36H x 12G x 3/8" Bolt-On Axle, Black
Spoke -- 12G Stainless Steel with Brass Nipples
Cassette 11-36T --
Sprocket 32T with double chain ring guard --
Bottom Bracket Sealed cartridge BC1.37'' x 24TPI, Steel, Caged Bearings
Spindle: Square Taper (JIS), Bolt Type, 68 x 110mm
Stand -- Alloy, Center Mount, Black
Tyres
Front Kenda Small Block Eight Pro 24 ×1.5 Kenda Komfort 26 x 1.95", Black Wall,26" x 1.90-2.35'', Schrader Valve
Rear Kenda Small Block Eight Pro 24 ×1.5 Kenda Komfort 26 x 1.95", Black Wall,26" x 1.90-2.35'', Schrader Valve
Wheel / RIM Rim : Aluminum with grinded sidewalls 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 Tektro aluminum alloy V-brake Alloy (Linear Pull) Black
Rear Tektro aluminum alloy V-brake Alloy (Linear Pull) Black
Brake Lever Tektro aluminum alloy Alloy (Linear Pull) Black / Silver
Suspension
Front -- --
Rear -- --
Colors Available
Colors Speed Silver
Braap Blue
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Physical Specs
Length -- --
Weight 9.6 kg 22.6 kg
Seat Height 655 --
Overview
Features - Prevelo confidence inspiring low and narrow geometry. Prevelo geometry keeps the rider low, balanced and in control.
- Lightweight 6061 aluminum frame with custom formed tubing.
- Lightweight aluminum alloy fork with chromoly steerer.
- Tektro front and rear v-brakes.
- Lightweight Allen head front and rear wheel skewers for secure wheel installation.
- Three piece crank with squared taper bottom cartridge bearing bottom bracket and ultra narrow Q factor.
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Additional Details -- 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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