Measure Your Touring or Bikepacking Bike for SteerStopper®

Use these steps to measure your touring, bikepacking, or tandem bike so you can select the correct SteerStopper® configuration before ordering.

Before you begin, have a flexible tape measure, ruler, or calipers available. As an alternative, here’s a printable template.

  1. Measure your Steerer Tube or Quill Stem

  2. Measure your Top Tube or frame.

  3. Check for your frame for obstacles for the SteerStopper® and Receiver

    See the basic parts of your bicycle

    See the fork and steerer tube

If your measurement falls between sizes or you’re unsure which option to choose, please contact us. We’re happy to help ensure your SteerStopper® fits your bike correctly.

Threadless Headset, Also known as the AHEAD SET: 1-1/8” (28.6mm) is the most common size, but can also be 1-1/4” (31.75mm).

Quill Stem: 7/8” (22.2mm), Classic “Goose Neck” is fitted using a 7/8” (22.2mm) Quill Stem Spacer, sold separately.

1-inch Stem: (25.4mm), Similar to the Classic Goose Neck, but slightly larger, fitted using a 1-inch (25.4mm) spacer, sold separately.

For Non-Round Top Tubes:

Universal-Fit Receiver: Maximum Circumference is 7-1/2"(190mm). This diameter can be doubled by using two clamps.

Once you have your measurements, you can choose the appropriate SteerStopper® configuration and place your order here.