The Central Adirondacks including Old Forge, Inlet, Indian Lake, and North Creek, offer mountain biking opportunities for all skill levels.
The following descriptions come from Pedals and Petals, a great mountain biking shop in Inlet NY. They are a nationally rated as one of America's best bike shops and offer sales, service and rentals. A great place to get advice on area trails as well as help in learning what bike is best for you.
Fern Park Trails (Inlet NY) These trails are for adventurous bikers. Double and single-track trails loop up,
down and around Fern Mountain with lots of elevation change.
The Old Forge Mountain bike trail system are mostly easy trails, flat and some small rolling hills with a few Steep Climbs. There is easy access directly from Old Forge or Eagle Bay. You can also get on the train in Thendara and they will take you to Carter Station in the middle of the trail system. There are a few single-track trails that shoot off the main trail system. These trails are a great family fun trail system.