That seems like a lot for a town this size. Heck, it certainly looks like enough during a tour down Main Street. But during the season it is very hard to find a room.
Rooms run the gamut of budget to luxurious.
Ask about bike-related rules. Most proprietors in this mountain biking mecca are enlightened, but some establishments still have a few archaic practices. Currently, crime isn't a big problem in Moab and practicing normal bike security is usually enough. But you never know. Spring and fall are certainly the riskiest times.