The Cult Crew Cranks-19mm at J&R Bicycles are sturdy high-quality cranks with a sleek wrap-around gusset design and are engineered to keep the weight off. The 19mm chromoly spindle is hollow and so is the single flush-mount spindle bolt, so no extra baggage. The crank arms are constructed from heat-treated swaged chromoly and the spindle/sprocket boss is one pieces. RHD/LHD compatible and Cult offers a lifetime warranty on them.