When you're shopping road gravel bikes for endurance miles, two used Trek Domanes illustrate the choice perfectly. The Domane 5.9 lists at the lower end of the pair, while the Domane SL5 Carbon Endurance sits at the higher end. Both are used bikes from the same endurance family and both promise long-mile comfort. The real question is what you want more: the lower listed price of the 5.9 or the newer platform of the SL5. Your frame size also narrows the choice before you even think about components, since the two bikes are listed in different sizes.
Quick verdict
If your priority is the lower listed price, the 5.9 is the obvious starting point; it lists USD 1,251.00 lower in the price range. If you want a newer build and the more current endurance package, the SL5 is the pick. For steady endurance miles at a friendlier listed price, the 5.9 has the stronger case. If the newer design matters more, the SL5 justifies the higher end of the price range.
Listed price and specs at a glance
| Product | Listed Price | Frame | Drivetrain | Brakes | Notable Details |
|---|---|---|---|---|---|
| Used Trek Domane 5.9 | USD 2,249.00 | 58cm | Shimano Ultegra Di2 2x11 | Caliper | Carbon endurance frame, 700x28c, 16 lbs 08 oz |
| Trek Domane SL5 | USD 3,500.00 | 56cm | Shimano 105 R7020 11-speed | Mechanical disc | IsoSpeed, internal storage, tubeless 700x32 |
Where each product wins
- Used Trek Domane 5.9: lower listed price and a larger frame.
- Trek Domane SL5: newer build, more current endurance platform, and both short and tall seat posts included.
Used Trek Domane 5.9, Shimano Ultegra Di2, Carbon Endurance Road Bike-2014, 58cm

This is the pick when the lower listed price matters most. The listing describes a carbon endurance frame with a fit range of 5'10" to 6'2", Shimano Ultegra Di2 R8050 shifting front and rear, an Ultegra R8000 crankset with 50/34t chainrings, caliper brakes, and a listed weight of 16 lbs 08 oz. The 700x28c Vittoria Rubino Pro tires and Bontrager Race Lite TLR wheelset round out a build that looks like a dedicated long-distance road machine. The listing also notes an 11-34t cassette for climbing range and a Trek carbon seat mast. The trade-offs are the 2014 model year and caliper brakes, and the 58cm frame is the only size listed, so it only works if that is approximately your size. The listing describes the condition as "Very Good".
Trek Domane SL5 Carbon Endurance 56cm Road Bike Disc Brake 2023

The SL5 takes the modern route in the Domane endurance lineup. It uses a 500 Series OCLV frame with IsoSpeed, internal storage, a tapered head tube, internal cable routing, and fender mounts. Braking is mechanical disc with flat mount and a 142x12mm thru axle, and the drivetrain is Shimano 105 R7020 11-speed. The 700x32 wheels are set up tubeless, and the listing includes both short and tall seat posts. It also carries an adjustable seat, is described as lightweight, and comes in a gray finish. The main trade-off is the higher listed price, and the listing notes that pedals are not included.
Final choice by use case
- Choose the Used Trek Domane 5.9 for the lower listed price of USD 2,249.00 and the 5'10" to 6'2" fit range.
- Choose the Trek Domane SL5 for the newer 2023 platform at the listed price of USD 3,500.00.