Trek Koa 3i vs Trek Madone SLR 9 Gen 7

Load Carrying Capacity	Combined weight of bicycle, rider, and cargo of 300 pounds (136 kg)	125 kg (275 lb)
Battery	--	Shimano BT-DN300
Charger	--	Charging cable included
Frame	Boomerang 6061-T6 aluminum w/ patented Flat Foot Technology	800 Series OCLV Carbon, KVF (Kammtail Virtual Foil) tube shape, IsoFlow seat tube, invisible cable routing, 3S aero chain keeper, T47 BB, flat mount disc, 142x12 mm thru axle
Stem	Alloy classic	--
Handle Bar	Electra Cafe	Size: 47 Madone Integrated handlebar/stem, OCLV Carbon, 80 mm reach, 124 mm drop, 35 cm control width, 38 cm drop width, 80 mm stem length Size: 50, 52 Madone Integrated handlebar/stem, OCLV Carbon, 80 mm reach, 124 mm drop, 37 cm control width, 40 cm drop width, 90 mm stem length Size: 54 Madone Integrated handlebar/stem, OCLV Carbon, 80 mm reach, 124 mm drop, 39 cm control width, 42 cm drop width, 90 mm stem length Size: 56, 58 Madone Integrated handlebar/stem, OCLV Carbon, 80 mm reach,
Fork	Steel unicrown	Madone KVF full carbon, tapered carbon steerer, internal brake routing, flat mount disc, carbon dropouts, 12x100mm thru axle
Seatpost	Classic alloy pillar	Size: 47, 50, 52, 54 Madone aero carbon seat post, 0 mm offset, short length Size: 56, 58, 60, 62 Madone aero carbon seat post, 0 mm offset, long length
Grip	Custom	Bontrager Supertack Perf tape
Crankset	Electra custom alloy 3-piece	Size: 47 Shimano Dura-Ace R9200, 52/36, 165 mm length Size: 50, 52 Shimano Dura-Ace R9200, 52/36, 170 mm length Size: 54, 56, 58 Shimano Dura-Ace R9200, 52/36, 172.5 mm length Size: 60, 62 Shimano Dura-Ace R9200, 52/36, 175 mm length
Pedals	Electra retro	--
Chain	KMC S1 nickel plated	Shimano Dura-Ace/XTR M9100, 12-speed
Shifters	Shimano Nexus Revo 3-speed twist with optical gear display	Shimano Dura-Ace R9270 Di2, 12 speed
Saddle	Electra comfort with matching design with double-coil springs	Size: 47, 50, 52 Aeolus RSL, carbon rails, 155 mm width Size: 54, 56, 58, 60, 62 Aeolus RSL, carbon rails, 145 mm width
Headset	1" steel threaded	--
Derailleur Front	--	Shimano Dura-Ace R9250 Di2, braze-on, down swing
Derailleur Rear	--	Shimano Dura-Ace R9250 Di2, 34T max cog
Hub Front	Shimano Nexus 3-speed internal with coaster brake, 36h	--
Hub Rear	Shimano Nexus HB-IM40 with roller brake hub, alloy, 36h	--
Cassette	22t	Shimano Dura-Ace R9200, 11-30, 12-speed
Chainrings	44t steel chainring	1x: 50T, 2x: 54/40
Bottom Bracket	Sealed cartridge	Praxis, T47 threaded, internal bearing

Front	RetroRunner 26" × 2.125"	Bontrager R4 320, 700x25 mm
Rear	RetroRunner 26" × 2.125"	Bontrager R4 320, 700x25 mm
Wheel / RIM	Painted alloy	F: Bontrager Aeolus RSL 51, OCLV Carbon, Tubeless Ready, 51 mm rim depth, 100x12 mm thru axle R: Bontrager Aeolus RSL 51, OCLV Carbon, Tubeless Ready, 51 mm rim depth, Shimano 11/12 freehub, 142x12 mm thru axle

Front	Shimano BR-C3000 roller brake	Shimano Dura-Ace hydraulic disc Rotors Shimano MT900, CentreLock, 160 mm (Size: 47, 50, 52, 54, 56, 58, 60, 62) Shimano CL900, CentreLock, 160 mm (Size: 47, 50, 52, 54, 56, 58, 60, 62)
Rear	Shimano coaster brake	Shimano Dura-Ace hydraulic disc Rotors Shimano MT900, CentreLock, 160 mm (Size: 47, 50, 52, 54, 56, 58, 60, 62) Shimano CL900, CentreLock, 160 mm (Size: 47, 50, 52, 54, 56, 58, 60, 62)

Front	--	--
Rear	--	--

Colors

White

Deep Smoke Azure Satin Quicksilver Axinite Flip/Trek Black Viper Red Metallic Red Smoke to Red Carbon Smoke

Length	--	--
Weight	18.86 kg	7.1 kg

Features

- Flat Foot Technology - Internal Gear System

--