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
Marlin 6 - Trek Bikes (GB)
Trek Marlin 5 Hardtail Mountain Bike 2021 Green/Black | Mountain Bikes | Tiso UK