Allied GRX 815 Di2 Complete Bike vs Sun Biscayne Tandem CB

Compare Specifications of Allied GRX 815 Di2 Complete Bike and Sun Biscayne Tandem CB

Selected Bikes

Allied GRX 815 Di2 Complete Bike
Allied GRX 815 Di2 Complete Bike

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Sun Biscayne Tandem CB
Sun Biscayne Tandem CB

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Technical Specifications
Frame -- High Tensile Steel, TIG-Welded
Stem Easton EA90 Alloy, 25.4 x 180mm Quill x 80mm Ext. x 25.4 Clamp, Black
Handle Bar Easton EA70 AX
Handlebar Tape : Arundel Gecko
Steel, 28.4" Wide x 7.3" Rise x 25.4 Clamp, Black
Seatpost Easton EA70 --
Grip -- Foam, Black
Crankset Shimano GRX FC-RX810-1 40T --
Pedals -- Slip Resistant Top, 9/16", Black
Chain Shimano Ultegra CN-HG701 K.M.C. 1/2" x 1/8", Black (130 Links)
Shifters Shift levers : Shimano GRX ST-RX815 DI2 --
Saddle Ergon SR10 Sport Comfort Cruiser, Elastomer Suspension, Black
Headset -- Steel, 25.4 x 34 x 30mm, Black
Derailleur Rear Shimano XT RD-M8050 DI2 --
Hub Front -- Shimano CB-E110 Coaster Brake, 36H x 14G, Black
Hub Rear -- Alloy, 36H x 14G x 3/8" Bolt-On Axle, Black
Spoke -- 14G Stainless Steel with Brass Nipples
Cassette Shimano XT CS-M8000 11-42 --
Sprocket -- 19T x 1/2'' x 1/8''
Stand -- Alloy, Center Mount, Black
Tyres
Front Panaracer 43 Gravel King SK Beach Bum 26 x 2.125", Black Wall
Rear Panaracer 43 Gravel King SK Beach Bum 26 x 2.125", Black Wall
Wheel / RIM Industry Nine 1/1 GRCX Rims: 26" x 36H x 14G, Red
Brakes
Front Shimano GRX BR-RX810 Alloy (Linear Pull) Black
Rear Shimano GRX BR-RX810 Shimano CB-E110 Internal Coaster Brake, Black
Brake Lever -- Alloy (Linear Pull) Black / Silver
Suspension
Front -- --
Rear -- --
Colors Available
Colors Cavalry Blue Paint/Ecru Decals
Sport Grey Paint/Mystique Decals
Metallic Red


Physical Specs
Length -- --
Weight -- 27.2 kg
Overview
Features -- --
Additional Details Bottom Bracket : Shimano Ultegra BB-R60 Threaded 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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