Mountain bikes are an enormous category and cover a vast spectrum. On one extreme are long-travel, heavy-duty bikes designed ...

Learn more› By Eve O'Neill A solid rear rack is the foundation ... including a version for bikes equipped with disc brakes and one for 29ers, a style of mountain bike with 29-inch wheels.

49 mm is the older standard and will be found on mountain bikes that have been converted to 1x and are standard on bikes with non-boost rear axles. Boost chainlines are 52-56mm, commonly found on ...