In the world of Harley-Davidson, a stock bike is just the starting point. At Sun Harley-Davidson in Denver, Colorado, we believe your motorcycle should suit you. From aesthetic enhancements to raw performance upgrades, customizing a Harley is an essential rite of passage for every owner, creating a true custom Harley motorcycle

Unleash the Roar: Performance Exhaust Systems 

One of the most popular and impactful modifications is upgrading the exhaust. Replacing the factory system not only dramatically improves your bike's sound, giving it that deep, classic Harley growl, but also enhances engine breathing. This is a critical step for unlocking horsepower and torque, especially when paired with a high-flow air intake. 

The Right Stance: Custom Handlebars and Controls 

Changing the handlebars profoundly alters both the look and feel of your ride. From classic Ape Hangers and Drag Bars to performance-oriented T-Bars, the right set of custom controls is about maximizing comfort and dialing in your bike's unique attitude. This mod directly impacts rider ergonomics, creating a more engaging and comfortable experience, particularly on long-distance rides on a custom Softail.

Power Boost: Screamin’ Eagle Performance Upgrades 

For riders craving more speed and power, Harley-Davidson's Screamin’ Eagle performance parts are the answer. From Stage I kits (air filter and exhaust) to Stage IV Big Bore builds, these engine upgrades transform the Milwaukee-Eight. They’re engineered to deliver significant increases in horsepower and torque, turning your cruiser into a high-performance machine.

First Impressions: Wheels, Lighting, and Custom Paint 

Aesthetic mods are what truly turn a bike into a reflection of its owner. Custom wheels, upgraded LED lighting, and personalized paint decals are all powerful ways to create a head-turning machine. These Harley custom bike mods add visibility and style.


Personal style is all about the details. Don't settle for a machine built for everyone. Your bike should be a one-of-a-kind statement, and our certified technicians at Sun Harley-Davidson are here to help you achieve that vision. Whether it's a small change or a complete overhaul to create the ultimate custom Harley motorcycle, we have the genuine parts and expertise you need in Denver, CO. Schedule a test ride today!