Lawn mower with pivotal rocker arm assembly

A lawn mower comprising:

• a main chassis, the main chassis having a first pivot joint on a first side;
• a first rocker arm assembly having a first end portion and a second end portion, the first rocker arm assembly pivotally coupled to the first pivot joint of the main chassis at a location between the first end portion and the second end portion;
• a mower deck assembly, wherein the mower deck assembly is coupled to the first end portion of the first rocker arm assembly by a first front linkage and to the second end portion of the first rocker arm assembly by a first rear linkage;
• and
• a first caster wheel assembly coupled to the first end portion of the first rocker arm assembly.

An outdoor power equipment device comprising:

• a chassis;
• a first rocker arm assembly pivotally coupled to a first side of the chassis at a first pivot joint;
• a first front ground-contacting component pivotally coupled to a first end portion of the first rocker arm assembly by a pivotal linkage, the pivotal linkage being pivotally coupled between both the first end portion and the first front ground-contacting component;
• and
• a first drive wheel coupled to a second end portion of the first rocker arm assembly.