Jamis Explorer A2 vs Sun Brickell Tandem 7

Drivetrain	--	K.M.C. 1/2" x 1/8", Silver (152 Links)
Frame	6061 TIG-welded aluminum, all-new sport comfort design with upright ride position, replaceable derailleur hanger, center-mount kickstand bracket	6061 Series Aluminum, TIG-Welded
Stem	Jamis alloy, angle-adjustable, 90mm ext x 150mm quill (14–18") or 110mm ext x 180mm quill (19–21”)	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	Comfort hi-rise, steel, 25.4 x 80mm rise x 15˚ sweep x 620mm	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-tensile steel unicrown, radius blades with dropout eyelets	1-1/8'' High Tensile Steel, Curved Legs, Double Eyelets
Seatpost	Alloy micro-adjust, 350mm x 27.2mm, with alloy QR clamp	Alloy W/Integrated Clamp, 28.6 x 350mm, Black
Grip	Kraton comfort	Kraton Rubber-Gel, 130mm, 2-Tone Black & Grey
Crankset	Forged alloy, 48/38/28T, 170mm with chainguard	--
Pedals	Comfort platform with TPE non-slip insert	Slip Resistant Top, 9/16", Black
Chain	KMC Z7	K.M.C. 1/2" x 3/32", Silver (130 Links)
Shifters	Shift levers : Shimano EZ-Fire Plus, ST-EF500, 21-speed	Rear Shifter: Shimano Tourney 7-Speed Twist Shifter
Saddle	Jamis Comfort with extra thick padding, synthetic suede top, burnished side panels and bumper springs	Comfort Cruiser, Elastomer Suspension, Black
Headset	Internal cup, threaded, 1 1/8”	Semi Integrated, Steel, 25.4 x 44 x 30mm, Black
Derailleur Front	Shimano TY510 top swing/dual pull	--
Derailleur Rear	Shimano TY300	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 freewheel 7-speed, 14-34	--
Bottom Bracket	Sealed cartridge, 68 x 110.5mm	BC1.37'' x 24TPI, Steel, Caged Bearings Spindle: Square Taper (JIS), Bolt Type, 68 x 110mm
Stand	--	Alloy, Center Mount, Black

Front	CST - 1918, 27.5 x 2.1	Kenda Komfort 26 x 1.95", Black Wall,26" x 1.90-2.35'', Schrader Valve
Rear	CST - 1918, 27.5 x 2.1	Kenda Komfort 26 x 1.95", Black Wall,26" x 1.90-2.35'', Schrader Valve
Wheel / RIM	Alloy 36H rims, Formula alloy hubs, QR front and rear, 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)

Front	ProMax alloy direct pull brakes with Shimano levers	Alloy (Linear Pull) Black
Rear	ProMax alloy direct pull brakes with Shimano levers	Alloy (Linear Pull) Black
Brake Lever	--	Alloy (Linear Pull) Black / Silver

Front	--	--
Rear	--	--

Colors

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Length	--	--
Weight	13.8 kg	22.6 kg

Features	--	--
Additional Details	Sizes : 15”, 17”, 19", 21”	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