8 year olds and mountain biking
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My grandson enjoys riding the single track with me and currently is riding a Trek 7.2 fx hybrid. It is a child size with 24 inch rims and a 13 inch frame. I'm considering putting mountain bike tires on it and maybe a front shock. Has anyone had any experience altering this bike? Would the rest of the bike handle the abuse? Were we ride there is some rocks and roots but not a lot of downhill sections that would be considered very technical.

