Felt Doctrine Advanced SLX 2020 vs Sun Biscayne Tandem CB

Compare Specifications of Felt Doctrine Advanced SLX 2020 and Sun Biscayne Tandem CB

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Felt Doctrine Advanced SLX 2020
Felt Doctrine Advanced SLX 2020

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Sun Biscayne Tandem CB
Sun Biscayne Tandem CB

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Technical Specifications
Frame Felt XC, UHC Advanced carbon fiber, MMC with Inside Out construction, full carbon dropouts, Control Taper head tube, low-direct front derailleur mount, replaceable derailleur hanger, flat mount disc mounts, BSA Threaded bottom bracket, 12 x 148 mm Syntace style thru axle, internal derailleur cable routing High Tensile Steel, TIG-Welded
Stem Devox, ±7¡ rise, ¯31.8 mm with Cr-Mo bolts, XS/SM: 60 mm, M/L: 70 mm, XL: 90 mm Alloy, 25.4 x 180mm Quill x 80mm Ext. x 25.4 Clamp, Black
Handle Bar Devox 6061 butted riser, ¯31.8 mm, 15 mm rise, 9¡ sweep, 720 mm wide Steel, 28.4" Wide x 7.3" Rise x 25.4 Clamp, Black
Fork FOX 32 Rhythm, 120 mm travel, lockout remote, 15 x 110 mm Boost thru axle --
Seatpost Devox butted 6061, dual bolt, 15 mm offset, ¯27.2, XS/SM: 350 mm, MD/LG/XL: 400 mm --
Grip Devox Pauley Grip Foam, Black
Crankset Shimano SLX M7100, 32T, SM: 170 mm, MD/LG/XL: 175 mm --
Pedals -- Slip Resistant Top, 9/16", Black
Chain Shimano SLX M7100, 12-speed K.M.C. 1/2" x 1/8", Black (130 Links)
Shifters Shimano SLX M7100, 1 x 12 --
Saddle Prologo Kappa RS, T2.0 rails Comfort Cruiser, Elastomer Suspension, Black
Headset FSA integrated sealed cartridge ACB bearing, No. 42, 1.125" - 1.5" Steel, 25.4 x 34 x 30mm, Black
Derailleur Rear Shimano SLX M7100, 12-speed --
Hub Front Shimano MT510, Micro Spline, 12 x 148 mm Boost thru axle, Center Lock, 32H Shimano CB-E110 Coaster Brake, 36H x 14G, Black
Hub Rear 15 x 110 mm Boost thru axle, Center Lock, 32H Alloy, 36H x 14G x 3/8" Bolt-On Axle, Black
Spoke -- 14G Stainless Steel with Brass Nipples
Cassette Shimano SLX M7100, 12-speed, 10-51T --
Sprocket -- 19T x 1/2'' x 1/8''
Stand -- Alloy, Center Mount, Black
Tyres
Front Schwalbe Racing Ray Perf front + Racing Ralph Perf rear, Twinskin, folding, tubeless ready, 29 x 2.25" Beach Bum 26 x 2.125", Black Wall
Rear Schwalbe Racing Ray Perf front + Racing Ralph Perf rear, Twinskin, folding, tubeless ready, 29 x 2.25" Beach Bum 26 x 2.125", Black Wall
Wheel / RIM Double wall, tubeless compatible, 25 mm inner width Rims: 26" x 36H x 14G, Red
Brakes
Front Shimano MT500 hydraulic disc, 180 mm rotor Alloy (Linear Pull) Black
Rear Shimano MT500 hydraulic disc, 160 mm rotor Shimano CB-E110 Internal Coaster Brake, Black
Brake Lever Shimano Alloy (Linear Pull) Black / Silver
Suspension
Front -- --
Rear -- --
Colors Available
Colors Aquafresh / Carbon (Black)
Satin Charcoal Frost / Carbon (Black)
Metallic Red


Physical Specs
Length -- --
Weight -- 27.2 kg
Overview
Features -- --
Additional Details Chainguide : GW S3, low-direct mount

Bottom Bracket : Shimano, BSA threaded, 73 mm

Seatpost Clamp : Felt single bolt, ¯31.8 mm

Thru Axles : Rear: Felt leverless 12 x 148 x 166, thread: M12 x 1.0P x 18L, Syntace
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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