Motorcycle <> E-ZPass Transponder Mounting System + handle bar GAUGE

E-Z Pass Turnpike Transponder Holder.

Riding a motorcycle on the turnpike, stopping at toll booths and digging around to pay the toll is time consuming and irritating.

The E-ZPass Transponder keeps your ride safe and enjoyable.

For the cost of the round trip toll on the WV turnpike, you can acquire a transponder to place on the windshield of your vehicle.

For a whole year, your  tolls on the West Virginia Turnpike are covered. That same  transponder can be assigned to whichever vehicle you choose, of equal or lesser size, even your motorcycle

Simply use the WV E-ZPass app or go online to edit the vehicle assigned to the transponder, when needed.

 https://turnpike.wv.gov/e-zpass

UPDATED 18Aug 2026 - Handlebar GAUGE included

Measure your handlbar diameter. Select the correct mount size, to meet your need.

Designed to mount on most Touring Bikes, T&S Bikes and Bikes with Risers.

Four standard handlebar sizes:

1.  0.875" _ (22.22mm)

2.  1.0" _ (25.4mm)

3.  1.125" _ (28.6mm)

4.  1.25" _ (31.75mm)

Reliably secures E-ZPass {interior mount type} Transponder, away from blowing wind and rain.

Mounting position achieves optimal signal detection

Easy on, easy off design, for secure storage.

Installation Instructions:

• Ensure the two velcro strips, included with the E-ZPass windshield Transponder, have already been applied per E-ZPass instructions.

• On the Transponder, slide the two holders onto opposite ends.

  • Be sure to position the holders between the two velcro strips.

• With unit held horizontal, above and toward the front of the handlebar, slide the unit onto handlebar, snapping it in place.

  

• Rotate unit, so the transponder will be positioned towards the rider.

  

• (technical explanation: E-ZPass signal links to transponder from unit, on ceiling of WV toll booths, pointing straight down. Verify, after mounting unit, the transponder can be seen when you look straight down.)

• If travelling through states other than WV, the signal detection may be better with a slight rotation back toward the top of the bar.

Print with 7 walls, for strength.

NOTE:  My design objective was to create a motorcycle E-ZPass holder that accomplished the following:

1. quick and simple, to mount and dismount

2. strong and secure

3. adaptable to the four common motorcycle handlebar diameters

4. ability to easily relocate transponder to designated vehicle

5. optimized transponder signal response, to ensure reliable detection

6. easy to print (< 5 meters of filament per pair)

7. no support required

8. system maintains reliability, even during extremely heavy downpoors, by 1st sealing the transponder in zip lock before mounting.

Print the mount and gauge, give it to a friend with a motorcycle.

• Not compatible with sport bikes, without bar risers.

• If this does not mount, on your motorcycle, please provide feedback.

  • I'm always open to creating a new design.

The 17 states that use E-ZPass are: DE, FL, IL, IN, KY, MA, MD, MA, MN, NH, NJ, NY, NC, OH, PA, RI, VA, and WV. - - GA may soon use E-ZPass as well.