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Harley Performance Parts

Harley Performance Parts

Upgrade your ride with Harley-Davidson performance parts built to deliver real power, stronger throttle response, and dependable performance on the street and highway. The Harley Performance Parts collection at Dreaded Iron is designed for riders who want more than stock and expect their Harley to perform under real riding conditions.

We carry proven Harley performance upgrades including air intakes, exhaust components, fuel and engine performance parts, and drivetrain upgrades that are engineered to improve horsepower, torque, and overall ride quality. Every product is selected based on real-world testing and rider experience, not marketing hype.

Whether you’re building a Milwaukee-Eight performance bagger, upgrading a Harley touring bike, or dialing in a street-driven Harley for long-distance riding, these performance parts help your bike run harder, cooler, and more efficiently. Our focus is on reliable Harley performance parts that hold up to aggressive riding and long miles.

Built by riders. Tested on Harley-Davidsons. Trusted by Dreaded Iron.

Height Measurement

Dial in your windshield height in 60 seconds

This is the clean, repeatable way to choose the right height for your body and your riding position — no charts, no guessing.

Bike on level ground Straight stick / level Tape measure
  • 1

    Sit naturally

    Sit on your bike in your normal riding position. Look straight ahead — not up, not down.

  • 2

    Set your sight line

    Hold the stick/level horizontally at the tip of your nose, extending forward over the dash.

  • 3

    Measure the gap

    Measure from the top of your dash up to the bottom of the stick.

Your number = your windshield height

Whatever that measurement is, that’s the height you want to select. Round up to the nearest inch.

Example: If you measure 9.25", choose a 10" windshield.

Look over vs. look through

This method lands the top edge at your natural line of sight. From there it’s preference: look over (most popular) or look through (max coverage).

Between sizes?

Always round up. A slightly taller shield is easier to live with — especially at highway speed.

Want a second set of eyes? Ask a Rider and we’ll help you dial it in.
Help me choose a height Pick my model