Top Down Products, Unique Motorcycle Products

Meet the new owners


Hello everyone!                    

We are super excited for this opportunity and feel honored to carry on Dennis’ legacy in Top Down Products and the motorcycle industry.   As he is exiting TDP for retirement, we are ramping up!

Bristemy Engineering has manufactured parts for Dennis since 2012, and we have always admired his reputation and product line. We will continue to offer that same great customer service as you have been known to expect. Don’t be concerned with this transition, Dennis has been generous with his time and knowledge and has agreed to be just a call away when we need his expertise.

We have been blessed with a successful business manufacturing parts for the Harley Davidson and the overarching motorcycle industry since our beginning in 2005. We take the contribution we make to that industry seriously and place quality and customer service as priority one.  

We are here and ready to serve you! As you will see in our “SHOP,” we have been busy manufacturing products and are already stocked up on front and rear axle covers, ready to be shipped!

Please let us know if you have any questions, we are only an email or phone call away. We look forward to hearing from you and please let your friends and all riders know that the legacy of Top Down Products lives on!

Please send all inquiries to

 As always, be safe on the road and enjoy the ride.


Steve and Vergie Ryker

Prescott, Arizona



Top Down Products

Products Born and Made in the U.S.A.


Unique design allows the rider to stretch out and relax without Highway Pegs!

The Heelboard is an aftermarket Floorboard for Harley-Davidson Motorcycles. The Heelboard is designed with an integrated heel-rest and the appearance of the Floorboards can be customized. 

Available in three different models

Basic: No Upper Cutout and No Lower Graphics

Stock-Custom: You get to Mix-Match the Upper Cutouts and Lower Graphics from our stock designs.

Full-Custom: You tell us what you want! We will help and guide you along the way with choosing a design that best suits your plans or vision for your personalized product.

Axle Covers

Cover up those unsightly axle ends. From basic Caps to wicked Spikes. Chrome, Powder Coat and Contrast Cut with kits to fit all Harley-Davidson including Breakout Rocker and 2018-Present hollow front axle configuration.

Get a matching set for Front and Rear!

Shredder Axle Spinners

Don’t be mistaken, these axle spinners are unlike any other spinner you may find on the market today. This robust design is made from CNC machined and laser cut Billet Aluminum. Each one is hand-assembled with precision SST ball bearing then set at an ideal bearing pre-load to ensure the best performance.

Put a set of these spinners on your ride and you are sure to get noticed going down the road, sitting in the parking lot, or to help you take the big trophies at the next bike show!

Each spinner is designed and built to spin at low or high speeds as a result of our low friction design and spinner blade shape.

All spinners come with a high-quality chrome or powder-coated finish.


The “All-in-One” Mount that’s horizontal, vertical, and everywhere in-between. Don’t sacrifice a “Custom” look just to avoid hassles associated with fixed mounts. Roto-Plate allows you to “Play by the Rules” If and when you want to… or need to!


Lighting: No Lighting, optional Add-On Frame with Brake, Running and License Plate LED.
Adjustable: Quick rotation with a simple twist by hand
Orientations: Every 45 degrees over full 360 degrees.
Wire Routing: Hollow pivot shaft prevents wire damage.
Legal: Stay compliant with State Law and Inspection.
Material: Billet Aluminum CNC machined to a high quality.
Finish: Chrome, Gloss, or Satin Black Powder Coat.
Mounting: Universal model has oversized 1/2″ bore for mounting to Lower Shock Mount, or other threaded connection.
Optional Mounting Kit: See motorcycle-specific options
Size: For Standard 4 x 7 License Plate


COVER YOUR UGLY NUTZ! For All Harley’s including Hollow Axles on 2018-Present Bike and all BREAKOUT’s and ROCKER’s.

You have come to the right place. We have Axle Cover and Install Kits design exclusively for your bike! Look no more. Choose from our selection of Axle Covers or our dynamic, head-turning Axle Spinners!

Kits are so simple it takes minutes to install and just as simple to remove. No removing, modification to your axle, or bike. Also, check out our install videos below to see how the kits work!

Top Down Products

Mission Statement

To design and sell premium aftermarket motorcycle products that are distinctively unique, of the highest quality and that will exceed expectations at a reasonable price.

Services and Products

We are uniquely positioned as the originator of all aspects of the products we offer. We are the creator of the design, fabricator, and distributor of our own products. We are the single source of all products purchased from Top Down Products. Our products are a result of years in the motorcycle industry, both as a design and manufacturing company as well as countless years as a motorcycle enthusiast and avid motorcycle rider. All our products are “Born and Made” in the USA

Top Down Products Custom Parts for Harley Davidson

Specializing in Premium Aftermarket Accessories for Harley-Davidson Motorcycles

Top Down Products are Made in the United States of America

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Top Down Products.
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