![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 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](https://i.redd.it/8scwy0libxcb1.jpg)
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
![The BEST Marlin yet! | 2021 Trek Marlin 7 Hardtail Mountain Bike Review of Features and Weight - YouTube The BEST Marlin yet! | 2021 Trek Marlin 7 Hardtail Mountain Bike Review of Features and Weight - YouTube](https://i.ytimg.com/vi/p898YlOQGHc/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLAlGm3cP5zngpu8wvThYYMYpHHEmg)
The BEST Marlin yet! | 2021 Trek Marlin 7 Hardtail Mountain Bike Review of Features and Weight - YouTube
![I finally bought a bike! Its a Trek Marlin 4, 2021. Thanks for everyone from this community who suggested it and especially u/badger906 for explaining me a lot of basics : r/mountainbiking I finally bought a bike! Its a Trek Marlin 4, 2021. Thanks for everyone from this community who suggested it and especially u/badger906 for explaining me a lot of basics : r/mountainbiking](https://preview.redd.it/i-finally-bought-a-bike-its-a-trek-marlin-4-2021-thanks-for-v0-1ammvz225c9b1.jpg?width=640&crop=smart&auto=webp&s=9418382ea32b56b794774d72c8298c22564bd5c7)