All-City Zig Zag Ultegra vs Sun Biscayne Tandem CB

Compare Specifications of All-City Zig Zag Ultegra and Sun Biscayne Tandem CB

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All-City Zig Zag Ultegra
All-City Zig Zag Ultegra

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Sun Biscayne Tandem CB
Sun Biscayne Tandem CB

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Technical Specifications
Frame All-City A.C.E. Air-Hardened, Custom, Extruded steel frame, Custom tapered headtube with external headset High Tensile Steel, TIG-Welded
Stem Whisky No.7 Black Alloy Stem Alloy, 25.4 x 180mm Quill x 80mm Ext. x 25.4 Clamp, Black
Handle Bar Whisky No.7 Black 6° Flair Drop Bar Steel, 28.4" Wide x 7.3" Rise x 25.4 Clamp, Black
Fork Whisky No.9 RD+ Thru-Axle Tapered --
Seatpost Whisky No.7 Black Alloy Seat Post --
Grip All-City Super Cush Bar tape with All-City Alloy locking bar-end plugs, Black Foam, Black
Crankset Shimano Ultegra R8000 52-36 --
Pedals -- Slip Resistant Top, 9/16", Black
Chain Shimano HG601 K.M.C. 1/2" x 1/8", Black (130 Links)
Saddle All-City Gonzo Comfort Cruiser, Elastomer Suspension, Black
Headset Cane Creek 40 Series, Black Steel, 25.4 x 34 x 30mm, Black
Derailleur Front Shimano Ultegra R8000 --
Derailleur Rear Shimano Ultegra R8000 --
Hub Front All-City Go-Devil 24h Shimano CB-E110 Coaster Brake, 36H x 14G, Black
Hub Rear All-City Go-Devil 24h Alloy, 36H x 14G x 3/8" Bolt-On Axle, Black
Spoke -- 14G Stainless Steel with Brass Nipples
Cassette Shimano R7000 11-32 --
Sprocket -- 19T x 1/2'' x 1/8''
Stand -- Alloy, Center Mount, Black
Tyres
Front Teravail Rampart 700x28 60tpi Light and Supple Beach Bum 26 x 2.125", Black Wall
Rear Teravail Rampart 700x28 60tpi Light and Supple Beach Bum 26 x 2.125", Black Wall
Wheel / RIM Rims : Whisky No.9 30mm Carbon 24h Rims: 26" x 36H x 14G, Red
Brakes
Front Shimano Ultegra R8000 Flat-Mount Calipers w/ 6-bolt SM-RT86 160 rotors Alloy (Linear Pull) Black
Rear Shimano Ultegra R8000 Flat-Mount Calipers w/ 6-bolt SM-RT86 160 rotors Shimano CB-E110 Internal Coaster Brake, Black
Brake Lever Shimano Ultegra R8000 w/ Hydro Brakes Alloy (Linear Pull) Black / Silver
Suspension
Front -- --
Rear -- --
Colors Available
Colors Sunset Glow
Orange/Red Fade
Metallic Red


Physical Specs
Length -- --
Weight -- 27.2 kg
Overview
Features - Front & Rear fender mounts
- E.D. coated for durability and rust prevention
- Space for 2 bottle cages
- Pump peg on sizes 52cm and above
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Additional Details Bottom Bracket : Shimano RS500
Brake Housing : Shimano Hydro
Shift Housing : Jagwire LEX-SL
Derailleur Hanger : Replaceable derailleur hanger; '687' (FS2339)
Rear Spacing : 142mm x 12mm, THRU-AXLE, Ø12 x 167L, TP=1.5, TL=12
Seatpost Diameter : 27.2mm
Steerer Tube / Headset1 : 1/8" - 1 1/2" tappered, Upper: EC34, Lower: EC44, Crown Race 40mm
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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