Hey Guys. Here’s what I know. There will be locals doing shuttles in areas round there but to be honest I think you will struggle to get hooked up there… in my experience it takes some time to get in with the scene! In Formigal there are guys hiring bikes and they might be able to help you out with it or at the very least point you in the right direction. The ski area also rents decent bikes but whether you’re allowed to take them out of the area I don’t know.
The French side I don’t know. I’ve seens some tasty singletrack but it’s all got the French’s favourite word stamped on it… INTERDIT! Formigal / Panticosa isn’t the best place to bike, it’s very steep and rocky. Hikey bikey with the emphasis on hikey! (And I’m not adverse to steep tech). It’s beautiful for a bit of bike mountaneering though.
Those places I posted are a bit further south. If I wasn’t committed in the Basque Country I could offer guiding there but I’m pretty much commited here until October.
Some recommendations for you. The Baños de Panticosa are amazing. The Spa there is mind blowing. 2000m, outside in a bubbling pool with all the really big mountains around you. Panticosa is cool. Sallent de Gallego is great. Ainsa is a mountain biking mecca if you fancy a couple of hour drive.
You’re also not far from Luchon. Or indeed the Basque Country 😉