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