Second Hand Trek Marlin 7 Mountain Bike M/L 2021 Anthracite/Blue
Trek Marlin Mountain Bikes - 2021 - Roe Valley Cycles
It's been around two weeks since I bought Trek Marlin 4, 2021 and I freakin' love it. I'd like to change transmission (from 3-7 to 1-12 or 14), so what components will