Dyna Parts

Harley Dyna Parts & Accessories: Performance Upgrades for 1991–2017 Models

Upgrade your Harley-Davidson Dyna with aftermarket parts and accessories from Get Lowered Cycles. Whether you're building a performance-oriented Street Bob, customizing a Low Rider, restoring a Super Glide, or modifying a Fat Bob, our selection of Harley Dyna parts includes exhaust systems, suspension, seats, handlebars, risers, air cleaners, brakes, and engine components.

The Harley Dyna platform is known for its distinctive styling, rubber-mounted engine, and extensive aftermarket support. From traditional cruiser builds to aggressive club-style motorcycles, Dyna owners have a wide range of options for improving comfort, handling, performance, and appearance.

Which Harley Dyna Models Do We Carry Parts For?

Our catalog includes parts for many Harley-Davidson Dyna models produced primarily from 1991 through 2017, including:

• Street Bob (FXDB): A popular foundation for club-style and performance builds.

• Low Rider (FXDL): Known for its lower seating position and versatile customization options.

• Super Glide (FXD/FXDC): A classic Dyna platform with extensive aftermarket support.

• Fat Bob (FXDF): Features distinctive styling and a wider front-end configuration.

• Low Rider S (FXDLS): The 2016–2017 performance Dyna equipped with the Twin Cam 110 engine.

• Switchback (FLD): A Dyna-based model with touring-oriented features and different fitment requirements.

Not every product fits every Dyna. Components such as seats, exhaust systems, handlebars, brakes, and suspension frequently have specific model and year restrictions.

Important: The 2018-up Street Bob, Fat Bob, and Low Rider transitioned to Harley-Davidson's redesigned Softail platform. These newer models should not be confused with their earlier Dyna counterparts.

Harley Dyna Exhaust Systems

Upgrading the exhaust is one of the most popular modifications for a Harley Dyna.

A quality aftermarket exhaust system can change the motorcycle's sound, appearance, and engine performance. Popular choices include 2-into-1 exhaust systems for performance-oriented builds and 2-into-2 systems for riders seeking a traditional appearance.

When choosing a Dyna exhaust, consider engine modifications, ground clearance, passenger peg compatibility, and whether the system is intended for your exact model year.

An exhaust designed for a 2006–2017 Dyna may not fit an earlier motorcycle because of changes to chassis and exhaust mounting arrangements.

Shop Harley Dyna Exhaust Pipes

Harley Dyna Suspension & Rear Shocks

Suspension upgrades can substantially change how a Dyna responds to uneven pavement, cornering, and braking.

Get Lowered carries aftermarket shocks from manufacturers including Öhlins, Legend Suspensions, RacingBros, Progressive Suspension, and other performance brands.

When selecting new shocks, consider:

• Shock length and resulting ride height

• Rider and passenger weight

• Spring rate and preload adjustment

• Rebound damping adjustment

• Ground clearance and cornering requirements

• Compatibility with the motorcycle's specific chassis

A longer shock may increase rear ride height and ground clearance, while a shorter shock may lower the motorcycle. Neither is automatically the best choice for every rider.

Suspension travel, spring selection, and chassis geometry are just as important as shock length.

Shop Harley Dyna Shocks

Harley Dyna Seats

An aftermarket motorcycle seat can improve rider support, change seating position, and complement the appearance of a custom Dyna.

Popular options include step-up seats, touring-oriented designs, and low-profile solo seats from manufacturers such as Saddlemen, LePera, and other Harley seat specialists.

Performance-oriented step-up seats can provide additional support during acceleration, while touring seats often emphasize comfort over extended distances.

Dyna seat fitment requires particular attention to model year. For example, many seats designed for 2006–2017 Dynas do not interchange with 2004–2005 configurations.

Always verify seat mounting points, tank clearance, and compatibility with passenger seating or sissy bar arrangements.

Shop Harley Dyna Seats

Harley Dyna Handlebars & Risers

Handlebar and riser upgrades are central to many Dyna builds.

T-bars, motocross-style handlebars, high-rise risers, and traditional cruiser bars offer different riding positions and visual styles.

Popular manufacturers include Thrashin Supply, Kraus, ODI, LA Choppers, and Forbidden Motorcycles.

Before selecting handlebars or risers, verify the clamping diameter, factory hand controls, throttle system, cable lengths, brake line routing, and instrument mounting requirements.

Throttle compatibility matters: Most Dyna models use cable-operated throttles, while the 2016–2017 Dyna Low Rider S (FXDLS) uses throttle-by-wire. Choose grips and handlebars designed for your motorcycle's throttle system.

Shop Harley Dyna Handlebars

Shop Harley Dyna Risers & Parts

Harley Dyna Air Cleaners & Engine Performance

Improving airflow is another common part of a Dyna performance build.

Get Lowered carries air cleaner systems from manufacturers such as S&S Cycle, Arlen Ness, and other performance brands for compatible Evolution and Twin Cam applications.

The correct intake depends on the engine generation, fuel delivery system, and throttle-body or carburetor arrangement.

Harley Dyna motorcycles span different engine generations, including earlier Evolution applications and later Twin Cam models. Fuel delivery systems and mounting configurations also changed during Dyna production.

For modified engines, air cleaner and exhaust selection should be considered alongside camshaft choice, engine displacement, compression, and appropriate fuel tuning.

Shop Harley Dyna Air Cleaners

Choosing Parts for an Earlier vs. Later Dyna

One of the most common mistakes when shopping for Dyna parts is assuming all model years share the same components.

Harley introduced significant chassis and drivetrain changes during the platform's production history, particularly around the 2006 model year.

These differences can affect:

• Seat mounting and frame clearance

• Exhaust mounting and routing

• Transmission and drivetrain components

• Rear suspension and chassis accessories

• Electrical systems and controls

• Brake and wheel compatibility

Before ordering, confirm your Harley's year, model designation, engine configuration, and any existing aftermarket modifications.

Harley Dyna Parts Frequently Asked Questions

What years are considered Harley Dyna models?

The Dyna family was introduced around the 1991 model year and continued through 2017, with an early 1990 FXDB Sturgis application. Specific models were introduced and discontinued at different times.

Will 2018-up Softail parts fit a 2017 Dyna?

Not automatically. Although some model names continued, Harley-Davidson's 2018-up Milwaukee-Eight Softail platform uses a different chassis and suspension arrangement. Verify individual part compatibility.

What are the best upgrades for a Harley Dyna?

Popular starting points include improved rear shocks, a properly fitted seat, handlebars or risers, and an exhaust system. The best order depends on whether your priority is comfort, handling, performance, or styling.

Do all Dyna motorcycles use the same seats?

No. Seat mounting and chassis differences make model-year-specific fitment important, especially when comparing early and later Dyna generations.

Do I need a tune after installing a Dyna exhaust or air cleaner?

Tuning requirements depend on the motorcycle's fuel system, exhaust design, intake modifications, and current engine calibration. Modified fuel-injected engines may benefit from or require calibration changes, and emissions rules can restrict certain modifications.

What is the difference between a Dyna Low Rider S and an M8 Low Rider S?

The 2016–2017 Dyna Low Rider S (FXDLS) uses the Twin Cam 110 engine and Dyna chassis. The 2020-up Low Rider S (FXLRS) uses the Milwaukee-Eight Softail platform. Many parts are not interchangeable.

Shop Harley Dyna Parts at Get Lowered Cycles

Explore our selection of aftermarket Harley Dyna parts and accessories above, including exhaust systems, suspension, seats, handlebars, brakes, lighting, and engine upgrades.

Get Lowered Cycles offers free U.S. shipping with no minimum purchase on eligible domestic orders. Review individual product fitment, availability, and return eligibility before purchasing.