Trailer Hitches & Towing Research Guide

Trailer Hitches & Towing Research Guide Glossary Terms

Trailer Hitches & Towing Research Guide Glossary Definitions

Class III Towing Hitch Return to Top
Tow hitches come in three classes. Class I and class II hitches are reserved for towing lighter loads, and they use a square hole that measures in at 1 ¼" by 1 ¼". Heavier hauling requires a more substantial class III hitch, which uses a 2" by 2" square hole.
Receiver Return to Top
Hitch receiverThe part of a traditional hitch assembly that accepts insertion of the ball-mount adapter. Hitch-mount bike racks either fit into the receiver or clamp around the receiver. The clamp-around style allows you to still insert the ball mount adapter for towing.