Mountain bikes have come a long way over the years, with trends like 29-inch wheels—and more recently, 27.5-inch wheels—blazing the trail on bikes that are better and more versatile than ever before. High-end models are still notoriously expensive, but a technology trickle-down effect has pushed some more advanced features down into entry-level models. You can, for example, find a capable 29er from a well-respected manufacturer for under $1,500. Below are our mountain biking gear picks, with a focus on complete bikes that are available online (you can also find a varying selection at your local bike shop), as well as important accessories like helmets, shoes, and racks.