Trek Madone SL 6 vs Trek Marlin 8

Load Carrying Capacity	Combined weight of bicycle, rider, and cargo of 275 pounds (125 kg)	Combined weight of bicycle, rider, and cargo of 300 pounds (136 kg)
Frame	500 Series OCLV Carbon, KVF (Kammtail Virtual Foil) tube shape, adjustable top tube IsoSpeed, invisible cable routing, 3S aero chain keeper, flat mount disc, Duo Trap S compatible, 142 x 12 mm thru axle	Alpha Silver Aluminum, internal routing, chainstay disc brake mount, rack and kickstand mount, 135 x 5 mm QR
Stem	Size : 50 - Bontrager Pro, 31.8 mm, Blendr compatible, 7 degree, 80 mm length Size : 52, 54 - Bontrager Pro, 31.8 mm, Blendr compatible, 7 degree, 90 mm length Size : 56, 58 - Bontrager Pro, 31.8 mm, Blendr compatible, 7 degree, 100 mm length Size : 60, 62 - Bontrager Pro, 31.8 mm, Blendr compatible, 7 degree, 110 mm length	Size : XXS, XS - Bontrager alloy, 31.8 mm, Blendr compatible, 7 degree, 50 mm length Size : S - Bontrager alloy, 31.8 mm, Blendr compatible, 7 degree, 60 mm length ( Size : M - 70 mm length ) Size : ML, L - Bontrager alloy, 31.8 mm, Blendr compatible, 7 degree, 80 mm length Size : XL - Bontrager alloy, 31.8 mm, Blendr compatible, 7 degree, 90 mm length
Handle Bar	Size : 50, 52 - Bontrager Elite Aero VR-CF, alloy, 31.8 mm, invisible cable routing, 93 mm reach, 123 mm drop, 40cm width Size : 54, 56 - Bontrager Elite Aero VR-CF, alloy, 31.8 mm, invisible cable routing, 93 mm reach, 123 mm drop, 42cm width Size : 58, 60, 62 - Bontrager Elite Aero VR-CF, alloy, 31.8 mm, invisible cable routing, 93 mm reach, 123 mm drop, 44cm width	Size : XXS, XS - Bontrager alloy, 31.8 mm, 5 mm rise, 690 mm width Size : S, M, ML, L, XL - Bontrager alloy, 31.8 mm, 5 mm rise, 720 mm width
Fork	Madone KVF full carbon, tapered carbon steerer, invisible cable routing, flat mount disc, carbon dropouts, 12 x 100 mm thru axle	Size : XXS, XS - RockShox Judy Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, 100 mm QR, 80 mm travel Size : S, M, ML, L, XL - RockShox Judy Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, 100 mm QR, 100 mm travel
Seatpost	Size : 50, 52, 54, 56 - Madone aero carbon internal seatmast cap, integrated light mount, 25 mm offset, short length Size : 58, 60, 62 - Madone aero carbon internal seatmast cap, integrated light mount, 25 mm offset, tall length	Size : XXS - Bontrager alloy, 31.6 mm, 12 mm offset, 300 mm length Size : XS, S, M - Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length Size : ML, L, XL - Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length
Grip	Bontrager tape	Bontrager XR Trail Comp, nylon lock-on
Crankset	Size : 50, 52 - Shimano Ultegra R8000, 50/34 (compact), 170 mm length Size : 54, 56 - Shimano Ultegra R8000, 50/34 (compact), 172.5 mm length Size : 58, 60, 62 - Shimano Ultegra R8000, 50/34 (compact), 175 mm length	Size : XXS - SRAM SX Eagle, 30T steel ring (49 mm chainline), 155 mm length Size : XS , S , M - SRAM SX Eagle, 30T steel ring (49 mm chainline), 170 mm length Size : ML, L, XL - SRAM SX Eagle, 30T steel ring (49 mm chainline), 175 mm length
Pedals	--	VP-536 nylon platform
Chain	Shimano Ultegra HG701, 11-speed	SRAM SX Eagle, 12 speed
Shifters	Shimano Ultegra R8020, 11-speed	SRAM SX Eagle, 12 speed
Saddle	Bontrager Aeolus Comp, steel rails, 145 mm width	Bontrager Arvada, steel rails, 138 mm width
Headset	Madone integrated, stainless cartridge bearings, sealed, 1-3/8 top, 1.5 bottom	Semi-integrated, 1-1/8''
Derailleur Front	Shimano Ultegra R8000, braze-on	--
Derailleur Rear	Shimano Ultegra R8000, short cage, 30T max cog	SRAM SX Eagle
Hub Front	--	Formula DC-22LW, 6-bolt, Shimano 8/9/10 freehub, 135 x 5 mm QR
Hub Rear	--	Formula DC-20 LW, alloy, 6-bolt, 5 x 100 mm QR
Spoke	--	14g stainless steel
Cassette	Shimano Ultegra R8000, 11-30, 11 speed	SRAM PG-1210 Eagle, 11-50, 12 speed
Chainrings	50 / 34	1x/2x: 34T, 3x: 42T
Bottom Bracket	Trek BB90	Truvativ Powerspline, 73 mm, threaded cartridge, 118 mm spindle

Front	Bontrager R3 Hard-Case Lite, aramid bead, 120 tpi, 700 x 25c	Maxxis Ardent Race, tubeless, EXO casing, folding bead, 60tpi, 29 x 2.35''
Rear	Bontrager R3 Hard-Case Lite, aramid bead, 120 tpi, 700 x 25c	Maxxis Ardent Race, tubeless, EXO casing, folding bead, 60tpi, 29 x 2.20''
Wheel / RIM	Front : Bontrager Aeolus Comp, Tubeless Ready, 18 mm rim width, 100 x 12 mm thru axle Rear : Bontrager Aeolus Comp Disc, Tubeless Ready, 18 mm rim width, 142 x 12 mm thru axle	Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23 mm width, presta valve

Front	Shimano Ultegra hydraulic disc, flat mount Brake Rotor : Shimano RT800, centerlock, 160 mm	Shimano MT200 hydraulic disc Brake Rotor : Shimano RT26, 6-bolt,160 mm
Rear	Shimano Ultegra hydraulic disc, flat mount Brake Rotor : Shimano RT800, centerlock, 160 mm	Shimano MT200 hydraulic disc Brake Rotor : Shimano RT26, 6-bolt,180 mm

Front	--	--
Rear	--	--

Colors

Black/Quicksilver Radioactive Red/Trek Black

Gloss Alpine / Gloss Dnister Fade Gloss Radioactive Red / Nautical

Length	--	--
Weight	8.62 kg	13.20 kg

Features	- 500 Series OCLV - KVF Tube Shape - Madone IsoSpeed Decoupler	- Suspension Lockout - Rack Mounts - Rear Kickstand Mount - Inter Cable Routing
Additional Details	--	Max compatible fork travel : 100 mm (XS & S: 490 mm axle-to-crown, M & up: 509 mm axle-to-crown)