Bliss Out Next Time You Roll Out™

27.5

author:

27.5

584 mm. This tire size has become popular not just on mountain bikes, but also gravel, adventure, and bikepacking models. Although it’s often referred to as an ‘in-between’ size, this size–also known as ‘650B’–is much closer to 26” (+25 mm) than to a 29” (-38 mm) version.

Derek is an avid cyclist with more than two decades of experience in the sport, and currently resides in Denver, Colorado. He enjoys all types, including road, MTB, cyclocross/gravel, commuting, and touring. When he's not writing reviews and guides related to bike accessories, parts, and gear for TreadBikely.com, he's riding, talking about cycling, or thinking about bikes he can't afford. #rolloutblissout