I have a trek Marlin 6 size L year 2022, I have only modified the handlebars, stem and pedals, a trek 4300 size 19 year 2009 modified with the same as the previous one plus mechanical disc brakes and Chinese air fork, and thirdly a Marlin 5 size 17 approx from 2015-2016 which I rescued to mainly improve the wheels and the frame, the rest I prefer to buy new or use parts that I already have. The issue is that I bought the last one before the Marlin 6 that I currently use more, I use the 4300 sometimes or I leave it for a friend who visits me, the Marlin 5 was stored then and I was thinking of transforming it into gravel but I don’t know If it will be worth it mainly for the size since my size is “XL” I literally measure 1.90 meters. what dou you recommend?
by Sudden-Tumbleweed-31