Cassettes that fit the Trek Marlin 7 Gen 3
This bike runs 12-speed, SRAM Eagle chain, Shimano HG freehub, and its rear derailleur reaches a 50t largest cog.
Worked out from the bike's stock drivetrain — derived: cassette SRAM PG-1210 Eagle, 11-50T spec; chain SRAM SX Eagle, 12 speed spec; rear derailleur SRAM NX Eagle, 12 speed spec
Fits as-is
Mounts on the freehub body this bike already has.
- SRAM PG-1210 Eagle Cassette11–50t
12-speed
- SRAM PG-1230 Eagle Cassette11–50t
12-speed
Fits with a freehub body swap
These mount once you fit the freehub body they need — a part that comes off the rear hub with the cassette, and costs rather less than a wheel. Check your hub brand offers one before committing.
- SRAM XG-1275 Eagle Cassette (10-50t)10–50t
12-speed · needs a SRAM XD body
- SRAM XG-1295 Eagle Cassette (10-50t)10–50t
12-speed · needs a SRAM XD body
- SRAM XG-1299 Eagle Cassette (10-50t)10–50t
12-speed · needs a SRAM XD body
Not sure what the numbers mean? Our cassette guide covers speed counts, gearing ranges and how the freehub bodies differ.
Save this bike to your quiver, log the swap, and we'll remind you before the cassettes wear out — with the right part already picked.
Save this bike — it's free