BICYCLE RIM AND WHEEL HAVING INNER PROTRUSIONS

A rim (210) for a bicycle wheel includes a radially outer tire-engaging portion (214), a first side-wall, and a second sidewall spaced apart from the first sidewall. The first and second sidewalls may extend radially inward of the radially outer tire-engaging portion. The rim includes a radially inner portion having at least one asymmetric protrusion (220).