Gooseneck Stem Selection Guide

Round Tube Gooseneck Stem Selection

If you have a round stem gooseneck, this guide will help you know which gooseneck hitch & coupler to order. Tube Size can vary from 100mm (3-15/16″) to 4″ in diameter. Measuring through pin holes can usually tell the size. If slightly less than 4″ its a 100mm (3-15/16″ stem).

If Angled on a metric 100mm (3-15/16″) then the pin angle is greater than if it is angled on a 4″ stem. Straight pin holes is least common. 4″ round with angled pins is most common. If it has a bulldog sticker, it is a 100mm angled. If you are not sure, message us a picture of your stem.

Round Gooseneck Stem Angle & Sizing Guide
  • Tube Size can vary from 100mm (3-15/16″) to 4″ in diameter. Measuring through pin holes can usually tell the size. If slightly less than 4″ its a 100mm (3-15/16″ stem).
  • If Angled on a metric 100mm (3-15/16″) then angle is greater than if it is angled on a 4″ stem.
  • If you are not sure, please call 701-967-8577 or message us a picture of your stem.

Gooseneck Stem Selection Video