Jamis Portal C1 vs Sun Biscayne Tandem 7

Compare Specifications of Jamis Portal C1 and Sun Biscayne Tandem 7

Selected Bikes

Jamis Portal C1
Jamis Portal C1

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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 Dyad Pro High Modulus Carbon Fiber, 130mm travel 3VO suspension, Enduro® Max sealed bearing pivots, 1.5 - 1 1/8” tapered head tube, 12x148mm thru-axle, Internal dropper post routing, Custom Jamis upper chainguide, MRP SXg lower chainguide,Fox DHX2 Factory Series coil shock w/2-position compression switch, SLS 450lb Spring, high/low speed compression, high/low speed rebound, 10mm hardware, replaceable derailleur hanger High Tensile Steel, TIG-Welded
Stem Race Face Turbine R, 50mm extension, 35mm clamp diameter 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 Fox Factory 36 Float 29" w/ 3-position adjust compression & lock-out,15x110mm axle, air spring compression, rebound adjust, tapered alloy steerer, 140mm travel 1-1/8" High Tensile Steel, Curved Legs, Double Eyelets
Seatpost Fox Transfer Dropper, 1x remote Alloy w/o Clamp, 25.6 x 350mm, Black
Grip Jamis Lock-On Foam, Black
Crankset Truvativ Descendant Carbon, 32T --
Pedals -- Slip Resistant Top, 9/16", Black
Chain SRAM XX1 Eagle, 12-speed K.M.C. 1/2" x 3/32", Black (130 Links)
Shifters Shift levers : SRAM XX1 Eagle, 1x12-speed Shimano 7-Speed Revo Twist Shifter
Saddle WTB Volt Comfort Cruiser, Elastomer Suspension, Black
Headset FSA Orbit IS Integrated, 8mm cone spacer Steel, 25.4 x 34 x 30mm, Black
Derailleur Rear SRAM XX1 Eagle, 12-speed 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
Cassette SRAM XG1299, 12-speed, 10-50T --
Bottom Bracket SRAM DUB BC1.37'' x 24TPI, Steel, Caged Bearings
Spindle:Bolt Type, 119mm
Stand -- Alloy, Center Mount, Black
Tyres
Front Vittoria Martello 29 x 2.35", TNT tubeless Beach Bum 26 x 2.125", Black Wall
Rear Vittoria Martello 29 x 2.35", TNT tubeless Beach Bum 26 x 2.125", Black Wall
Wheel / RIM Stans Arch CB7 Carbon 29" tubeless wheels, 15x110mm axle front and 12x148mm rear NEO hubs, Sapim Race spokes 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 TRP G-Spec Trail SL 4-piston hydraulic disc, TR-33 180mm front & rear 6-bolt rotors Alloy (Linear Pull) Black
Rear TRP G-Spec Trail SL 4-piston hydraulic disc, TR-33 180mm front & rear 6-bolt rotors Alloy (Linear Pull) Black
Brake Lever -- Alloy (Linear Pull) Black / Silver
Suspension
Front -- --
Rear -- --
Colors Available
Colors Desert Storm --


Physical Specs
Length -- --
Weight 13.9 kg 27.2 kg
Overview
Features -- --
Additional Details Sizes : S (15.5), M (17), L (19), XL (21) 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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