SteerStopper® parts
measure, check obstacles, order
Measure your Steerer Tube or Quill Stem
Measure your Top Tube or frame using this Printable Template
Check for obstacles on the top tube.
See basic parts of your bicycle here
See the fork and steerer tube here
Threadless Steering System, 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.
Another way to measure:
Use a flexible measuring tape and measure the circumference and then divide by 3.14. If you don't have a flexible measuring tape, you can use a piece of tape to wrap the tube, then measure the length and divide by 3.14.
Specifications: Aluminum model
Recommended for all bikes with heavy front loads
Clamp+Lever Assembly: CNC machined T6061-T6 Anodized Aluminum, 10mm Thick
Torsion Spring: Custom Engineered, Stainless Steel
Hardware: 18-8 Stainless Steel
Receiver: CNC machined Acetal Homopolymer.
Weight: Clamp+Lever, Long=2.8oz. (80g), Shorty=2.78oz. (79g)
Weight: Receiver .25oz. to 1oz. (7-28g) depending on size
Warranty: Lifetime on aluminum parts, against manufacturing defects
Specifications: Bikepacker model
Recommended for bikepacking and bikes with lighter front loads
Clamp+Lever Assembly: Acetal Homopolymer, 10mm thick. Long=1.9oz.(54g), Shorty=1.86oz. (53g)
Torsion Spring: Custom Engineered, Stainless Steel
Hardware: 18-8 Stainless Steel
Receiver: CNC Machined Acetal Homopolymer
Warranty: One Year, excluding the Receiver
Have questions? Don’t hesitate to reach out to us HERE and we’ll be happy to help you.