Jamis Allegro A1 vs Sun Biscayne Tandem CB

Frame	Size Specific Design Triple-butted 6061 aluminum with fast back rear triangle, internal cable routing, formed top and down tube, oval chain stays with flat mount disc brake, kickstand mount, replaceable derailleur hanger and fender/rack eyelets	High Tensile Steel, TIG-Welded
Stem	Jamis Road 3D forged alloy, 10˚ rise x 90mm (14-18”)	Alloy, 25.4 x 180mm Quill x 80mm Ext. x 25.4 Clamp, Black
Handle Bar	Jamis Flat bar, 6061 T-6 aluminum, 31.8 x 10˚ sweep x 600mm (15-17”) 620mm (19-23”)	Steel, 28.4" Wide x 7.3" Rise x 25.4 Clamp, Black
Fork	Jamis full carbon composite with carbon steerer, Flat mount disc brake, low-rider carrier mounts and carbon drop out with stainless steel tabs and fender eyelets	--
Seatpost	Jamis alloy micro-adjust, 27.2 x 350mm alloy clamp with QR seatpin	--
Grip	Anatomic double density kraton	Foam, Black
Crankset	Shimano FC-MT210, 46/30, 170mm (14-18”)	--
Pedals	Platform style, steel cage/resin body	Slip Resistant Top, 9/16", Black
Chain	KMC Z9	K.M.C. 1/2" x 1/8", Black (130 Links)
Shifters	Shift Levers : Shimano Rapidfire Plus Altus SL-M2010, 18-speed	--
Saddle	Jamis Touring Women’s with SL cover	Comfort Cruiser, Elastomer Suspension, Black
Headset	FSA Integrated IS threadless with nylon upper compression ring, 1 1/8”	Steel, 25.4 x 34 x 30mm, Black
Derailleur Rear	Shimano Altus RD-M2000 rear and Shimano Altus FD-M370 front derailleur	--
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 HG200 9-speed, 11-34T	--
Sprocket	--	19T x 1/2'' x 1/8''
Bottom Bracket	FSA sealed cartridge, 68 x 110.5mm	--
Stand	--	Alloy, Center Mount, Black

Front	Vittoria Randonneur with reflective sidewalls, 700 x 35c	Beach Bum 26 x 2.125", Black Wall
Rear	Vittoria Randonneur with reflective sidewalls, 700 x 35c	Beach Bum 26 x 2.125", Black Wall
Wheel / RIM	Alex TD26 double wall disc specific alloy rims, 32H, Joytec 6-bolt alloy hubs with QR and 14g stainless steel spokes	Rims: 26" x 36H x 14G, Red

Front	Tektro HD-M280/281 hydraulic Flat Mount disc brakes with 160mm rotors and Tektro brake levers. 15-17” M281 (83mm reach); 19-23” M280 (88mm reach)	Alloy (Linear Pull) Black
Rear	Tektro HD-M280/281 hydraulic Flat Mount disc brakes with 160mm rotors and Tektro brake levers. 15-17” M281 (83mm reach); 19-23” M280 (88mm reach)	Shimano CB-E110 Internal Coaster Brake, Black
Brake Lever	--	Alloy (Linear Pull) Black / Silver

Front	--	--
Rear	--	--

Colors

--

Metallic Red

Length	--	--
Weight	--	27.2 kg

Features	--	--
Additional Details	--	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