I'm going to Playa Blanca in a few weeks. Where did you hire the bikes and were they any good?
Yeah, we rented from Papagayo Bikes (at least I think that was the name) in Playa Blanca. The quality was excellent and they're very well versed in high performance road and mountain bike rental. We brought our shoes, pedals, helmets, and repair stuff but they give out helmets and repair kits as normal procedure - I just felt better using my own! Have fun...