Fruita is great. I’ve been there twice and pretty much did the same both times (Part of a Moab/Gunnison road trip).
As above, the 18 road trails area (Edge loop I think is the biggie here) is great for just stitching bits together and generally getting your eye in. Stunning scenery. Kokopelli side for the harder stuff. One of my favourite bits of singletrack anywhere is the ‘Moore Fun’ section (ridden west to east). Get yourself a copy of this.
I think we spent 2 days in Fruita before driving to Moab, which is only half a days drive and has way more to offer. Having said this, I was there nearly 10 years ago. I’d ask at the bike shop there ‘Over The Edge’ for info too.