Belt having protrusion formed thereon

A belt with a protrusion, comprising:

• a belt main body comprising tooth portions at a predetermined tooth pitch on an inner surface of the belt in a longitudinal direction, and a cord extending in the longitudinal direction and arranged at a predetermined cord pitch in a width direction which is embedded in a back portion thereof;
• and
• a protruding portion formed on a back surface of the belt main body by an integral formation,
• wherein the cord has a fineness of 900 to 1100 deniers, and a ratio of a total of intervals between adjacent cords to a belt width of 12 to 45%,
• wherein the protruding portion is arranged outside the tooth portions, has a hardness of 81 to 91 degrees in accordance with Japanese Industrial Standard (JIS) K6253:2012, measured with an A-type hardness meter, and has a base width smaller than the tooth pitch, and
• wherein the cord comprises a polyester fiber.