Sun Brickell Tandem 7 vs Trek Supercaliber 9.9 XX1

Load Carrying Capacity	--	Combined weight of bicycle, rider, and cargo of 300 pounds (136 kg)
Drivetrain	K.M.C. 1/2" x 1/8", Silver (152 Links)	--
Frame	6061 Series Aluminum, TIG-Welded	OCLV Mountain Carbon main frame & stays, IsoStrut, tapered head tube, Knock Block, Control Freak internal routing, Boost148, 60 mm travel
Stem	Alloy W/Micro Adj. Angle, 25.4 x 180mm Quill x 90mm Ext., Black Stoker Stem: Alloy, Adjustable Reach (4-Bolt Face) Black	Size : S - Bontrager Kovee Pro, 35 mm, Knock Block, Blendr compatible, 13 degree, 60 mm length Size : M, M/L - Bontrager Kovee Pro, 35 mm, Knock Block, Blendr compatible, 13 degree, 70 mm length Size : L, XL - Bontrager Kovee Pro, 35 mm, Knock Block, Blendr compatible, 13 degree, 80 mm length
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	Bontrager Kovee XXX, OCLV Carbon, 35 mm, 0 mm rise, 720 mm width
Fork	1-1/8'' High Tensile Steel, Curved Legs, Double Eyelets	RockShox SID SL Ultimate, DebonAir spring, Charger Race Day, damper, 44 mm offset, Boost110, 15 mm Maxle Stealth, 100 mm travel
Seatpost	Alloy W/Integrated Clamp, 28.6 x 350mm, Black	Size : S - Bontrager XXX, OCLV Carbon, 31.6 mm, 0 mm offset, 330 mm length Size : M, M/L, L, XL - Bontrager XXX, OCLV Carbon, 31.6 mm, 0 mm offset, 400 mm length
Grip	Kraton Rubber-Gel, 130mm, 2-Tone Black & Grey	ESI Chunky
Crankset	--	Size : S - SRAM XX1 Eagle AXS Carbon, DUB, 34T alloy ring, Boost (52 mm chainline), 170 mm length Size : M, M/L, L, XL - SRAM XX1 Eagle AXS Carbon, DUB, 34T alloy ring, Boost (52 mm chainline), 175 mm length
Pedals	Slip Resistant Top, 9/16", Black	--
Chain	K.M.C. 1/2" x 3/32", Silver (130 Links)	SRAM XX1 Eagle, 12 speed
Shifters	Rear Shifter: Shimano Tourney 7-Speed Twist Shifter	SRAM XX1 Eagle, 12 speed
Saddle	Comfort Cruiser, Elastomer Suspension, Black	Bontrager Montrose Pro, 7 x 10 mm carbon rails, 138 mm width
Headset	Semi Integrated, Steel, 25.4 x 44 x 30mm, Black	Knock Block Integrated, 62-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom
Derailleur Rear	Shimano RD-TX35 Tourney	SRAM XX1 Eagle
Hub Front	Alloy, 36H x 12G x 3/8" Bolt-On Axle, Black	--
Hub Rear	Alloy, 36H x 12G x 3/8" Bolt-On Axle, Black	--
Spoke	12G Stainless Steel with Brass Nipples	--
Cassette	--	SRAM Eagle XG-1299, 10-52, 12 speed
Chainrings	--	36T
Bottom Bracket	BC1.37'' x 24TPI, Steel, Caged Bearings Spindle: Square Taper (JIS), Bolt Type, 68 x 110mm	SRAM DUB, 92 mm, PressFit
Stand	Alloy, Center Mount, Black	--

Front	Kenda Komfort 26 x 1.95", Black Wall,26" x 1.90-2.35'', Schrader Valve	Bontrager XR2 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29 x 2.20''
Rear	Kenda Komfort 26 x 1.95", Black Wall,26" x 1.90-2.35'', Schrader Valve	Bontrager XR2 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29 x 2.20''
Wheel / RIM	Rims: 26" x 36H x 12G, Alloy, Black Front: 26" x 1.75 x 36H x 12G Alloy-Cruiser, Bolt-On Rear: 26" x 1.75 x 36H x 12G Alloy-Cruiser (For Freewheel)	Front : Bontrager Kovee XXX, OCLV Mountain Carbon, Tubeless Ready, centerlock, Boost110, 15 mm thru axle Rear : Bontrager Kovee XXX, OCLV Mountain Carbon, Tubeless Ready, DT Swiss 54T engagement, centerlock, SRAM XD driver, Boost148, 12 mm thru axle

Front	Alloy (Linear Pull) Black	SRAM Level Ultimate hydraulic disc, carbon levers
Rear	Alloy (Linear Pull) Black	SRAM Level Ultimate hydraulic disc, carbon levers
Brake Lever	Alloy (Linear Pull) Black / Silver	--

Front	--	--
Rear	--	--

Colors

--

Matte Raw Carbon/Gloss Trek Black Gloss Radioactive Red/Matte Black Carbon Blue Smoke/Radioactive Coral

Length	--	--
Weight	22.6 kg	9.29 kg

Features	--	- IsoStrut - OCLV Mountain Carbon - Straight Shot w/Knock Block - Carbon Care Wheel Loyalty Program - Water Bottle Capacity - Complete Tubeless System - Carbon Care Wheel Loyalty Program - Suspension Calculator
Additional Details	Captain Crank Left: 3-Piece Alloy, 170mm x 42T x 1/2" x 1/8", 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, Black (4-Bolt x 104mm BCD) W/Plastic Chain Cover Pulley Adjuster:Eccentric BB Insert Seat Clamp: Alloy, 34.9mm I.D., with Double Bolt, Black Stoker Seat Clamp: Alloy, 34.9mm I.D., Black Front Fender: Plastic W/Rubber Bump Guards, Silver Rear Fender: Plastic W/Rubber Bump Guards, Silver Fender Set: Plastic, F&R W/Rubber Bump Guards, Silver	Shock : Trek IsoStrut, Fox Factory shock, air spring, DPS 2-position remote damper, Kashima Coat, 235 x 32.5 mm Suspension lever : Fox 2-position Max compatible fork travel : 120 mm (531 mm axle-to-crown)