Best adult mountain bikes for trail riding

Top pick: Trek Fuel EX — a do-it-all trail bike that climbs well and stays composed on descents, with a light carbon frame and 145 mm of travel. It's the one most riders can buy once and keep.

• Specialized Stumpjumper 15 — the pick if you want a slightly more playful, descending-focused trail bike; aluminum frame keeps it simpler to own.
• Propain Hugene — best for riders who want a light, efficient trail bike for long recreational days and only occasional rough stuff.
• Forbidden Druid 2 — for the rider whose "trail" means steep, technical descents and who wants a premium build.
• Ozark Trail M.2 Ridge — the sensible budget entry for paved paths, gravel and easy singletrack; expect a heavier, simpler bike.

Skip the 20–24" kids' sizes and department-store full-suspension bargains if real trail riding is the goal.