Marin Bolinas Ridge 1 vs Sun Brickell Tandem 7

Drivetrain	--	K.M.C. 1/2" x 1/8", Silver (152 Links)
Frame	Series 1 6061 Aluminum, 27.5”/29" Wheels, Low Standover, 68 mm BB shell, 135 mm Forged Dropouts, Chainstay Mounted Disc Brakes	6061 Series Aluminum, TIG-Welded
Stem	Marin Alloy, 31.8 Bar Bore, 45 mm	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	Marin 31.8 Riser, 12 mm Rise, 780 mm Width	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	--	1-1/8'' High Tensile Steel, Curved Legs, Double Eyelets
Seatpost	Marin Alloy, 27.2 mm	Alloy W/Integrated Clamp, 28.6 x 350mm, Black
Grip	Marin Dual Density	Kraton Rubber-Gel, 130mm, 2-Tone Black & Grey
Crankset	Shimano FC-TY301, 42/34/24T	--
Pedals	Nylon Platform	Slip Resistant Top, 9/16", Black
Chain	KMC Z51	K.M.C. 1/2" x 3/32", Silver (130 Links)
Shifters	Shift Lever : Shimano Tourney 3x7-Speed	Rear Shifter: Shimano Tourney 7-Speed Twist Shifter
Saddle	Marin MTB	Comfort Cruiser, Elastomer Suspension, Black
Headset	FSA No.10-P	Semi Integrated, Steel, 25.4 x 44 x 30mm, Black
Derailleur Front	Shimano FD-TX500	--
Derailleur Rear	Shimano Tourney, 7-Speed	Shimano RD-TX35 Tourney
Hub Front	Formula, 32H	Alloy, 36H x 12G x 3/8" Bolt-On Axle, Black
Hub Rear	Formula, 32H	Alloy, 36H x 12G x 3/8" Bolt-On Axle, Black
Spoke	15 g Black Stainless Steel	12G Stainless Steel with Brass Nipples
Cassette	SunRace 7-Speed, 11-34T	--
Bottom Bracket	--	BC1.37'' x 24TPI, Steel, Caged Bearings Spindle: Square Taper (JIS), Bolt Type, 68 x 110mm
Stand	--	Alloy, Center Mount, Black

Front	MTB, 27.5/29 x 2.25"	Kenda Komfort 26 x 1.95", Black Wall,26" x 1.90-2.35'', Schrader Valve
Rear	MTB, 27.5/29 x 2.25"	Kenda Komfort 26 x 1.95", Black Wall,26" x 1.90-2.35'', Schrader Valve
Wheel / RIM	Marin, Double Wall Alloy	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	Power CX7 Mechanical Disc, Shimano Pad Compatible, 160 mm Rotor	Alloy (Linear Pull) Black
Rear	Power CX7 Mechanical Disc, Shimano Pad Compatible, 160 mm Rotor	Alloy (Linear Pull) Black
Brake Lever	Shimano w/ Integrated Shifters	Alloy (Linear Pull) Black / Silver

Front	SR Suntour XCE Disc, 100 mm Travel, Preload Adjustment, 46 mm Offset	--
Rear	--	--

Colors

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Length	--	--
Weight	--	22.6 kg

Features	- Series 1 Aluminum Frame - 29” OR 27.5” Wheels - Disc Brakes - Trail Ready Components	--
Additional Details	Bottom Bracket : Sealed Cartridge Bearings, Square Taper	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