10% OFF All Motorcycle Wheels!

21 Inch Harley Wheels

21 Inch Harley Motorcycle Wheels

SMT’s 21 inch Harley wheels are the best in the motorcycle industry. American-manufactured in Glendale, AZ from high-quality aircraft-grade billet aluminum alloy with a definite attention to detail. Our 21-inch bagger wheels are second to none, especially cheap mass-produced cast.

Shop 100’s of custom designs in front, rear, wide, 2D, 3D, chrome, black, contrast double-cut, and 6,500+ powder coat colors to choose from. We have the perfect wheel and fit for your motorcycle. We guarantee it!

If you are looking to take your Harley to the next level, but don’t want the headaches of dealing with modifications, then 21-inch wheels from SMT are a great choice. View our Harley wheel fitment chart to see which models, trim levels, and years can fit a 21-inch wheel without any modifications and which will require some mods.

On most Harleys, 21 inches is the maximum wheel size you can go without needing to change out your rake and/or fender. Perfect for the average garage motorcycle mechanic who doesn’t want to cut or weld. Just bolt on and ride!

SMT 2D, 3D, and fat tire motorcycle wheels offer superior performance and a sleek, cutting-edge look that will turn heads wherever you go. Financing available.

15 of 15 Items
15 of 15 Items

5 Reasons to Convert to a 21" Motorcycle Wheel

21-inch wheels will make your Harley look more aggressive, giving you a custom look without all the mechanical and technical hassles of a problematic install. With our Performance Series, you can actually increase the handling and performance of your motorcycle.


21-inch Metric, Indian, and Harley wheels are the perfect size to make a statement on the road. A great way to turn heads and ride in style without swapping out most of the front end.


Smooth Ride

One of the most common questions at SMT is whether or not upgrading to a 21 inch motorcycle wheel will sacrifice ride quality. The short answer is no – you can improve your ride quality when pairing high-quality SMT wheels with high-quality American Suspension components. Making your motorcycle look great and perform even better than it did with most factory wheels.


Rides Like a Cadillac

There are many benefits to having a larger wheel, but the biggest one is the increased Angular Momentum. The larger diameter 21" wheel will keep your Harley motorcycle more stable at higher speeds. Additionally, the extra weight of the 21 inch wheel will help to keep your bike planted on the road. So if you’re looking for a smoother ride and increased stability, a 21 Harley wheel will keep you straight as an arrow.



A 21 inch motorcycle wheel is a popular upgrade from the smaller 16 to 18 inch OEM wheels that come standard on most Harleys, Indians, and Metrics. Not only does it give your motorcycle a more proportioned and aggressive stance, but it also makes the wheel the center point of your bike.



The way we see it, it’s all in the details. We take pride in our work, which shows in our finished product. We set the industry standard. When you ride with the best of the best, you ride with SMT. Forget cast, go with military aircraft-grade billet aluminum alloy backed by a warranty!


Backed by a Lifetime Guarantee

SMT offers a lifetime structural warranty on our 21 inch motorcycle wheels. Your investment is protected because we have the highest standards in materials, testing, and construction techniques. You can be confident that your wheel will provide years of trouble-free performance.

How to Choose SMT’s 21 Harley Wheel & Tire Package

  • checkmarkSIZE: Choose 21″ x 2.15″, 21” x 3.25” or Bulldog 21” x 5.5”
  • checkmarkFINISH: Comes in chrome, gloss black, black double-cut, or 6,500+ custom powder coat colors
  • checkmarkTIRE: 21 inch tires are available in Avon, Dunlop, Metzler, Michelin, Vee Rubber or Shinko. It comes mounted & balanced
  • checkmarkRAKE KIT: Most motorcycles don’t require a rake at this diameter
  • checkmarkROTOR: Keep your existing or go with a matching rotor, performance floating rotor, or rapid cooling vented rotor; standard or oversized 13 inch (requires adapter); single or dual
  • checkmarkHUB: Comes with a standard hub or upgrade to a RaceLox lightweight performance hub
  • checkmarkBEARINGS: Choose from standard or ABS bearings

21 Inch Wheel FAQs


Do I need to rake a 21 inch motorcycle wheel?

Most models of Harley, Indian, and Metric motorcycles do not need the rake changed when upgrading to a 21-inch wheel. Give us a ring to consult if you have any questions about your make and model requirements.


Do I need a new front fender for my 21 inch motorcycle wheel?

Maybe. If going from 16 inch to 21 inch, you may need a new fender for the much larger diameter. A fender spacer may be needed but it looks a little weird or rubs on the fork when you hit a bump. A new 21-inch fender tucks your tire away and will complement the new wheel.

Our 21" Fat Katz fenders come in Bulldog (wide front), classic, and wrap-around styles. They are made of steel and come unpainted.


Do I need a caliper adapter for 13 inch rotors?

When upgrading to oversized 13 inch rotors, an SMT adapter kit is an essential piece of equipment. These adapter kits have everything you need to install 13 inch rotors on your motorcycle.

Parts List for a 21 Inch Harley Wheel Conversion

Ride With The Best Guarantee: Experience, Knowledge, Service, Quality, Design

No one in the U.S. can touch us. All of our custom motorcycle wheels and parts are made from aircraft-grade 6061-T6 billet aluminum alloy and machined right here in Glendale, AZ. These are NOT your cheap, run-of-the-mill, fall-off-your-bike, rust-after-a-year, aftermarket motorcycle wheels, parts, and accessories. We 100% stand behind our custom motorcycle and wheel products and will work with you on any issues that may arise. Our custom products are as trustworthy as you can get. We thoroughly inspect every motorcycle wheel for quality assurance to make sure you get the best custom wheels for your Victory, Harley, Honda, Indian, Yamaha, Kawasaki, and Suzuki motorcycles.

We also offer a payment plan to get your custom motorcycle wheel started, cut, and ready to roll, starting at 50% down on any wheel size, shape, and design.

Our custom motorcycle wheels are available in 16-inch, 17-inch, 18-inch, 19-inch, 20-inch, 21-inch, 23-inch, 26-inch, 30-inch, 32-inch, and 34-inch including our 18x5.5", 21x5.5", 23x5.5", and 26x5.5" wide-wheel fat tire Bulldog sizes. We have 3 rim finishes (chrome, black, and black double cut) but we can match any color your ride requires with the largest color selection in the world (6,500 Prismatic powder coatings). Our advanced filtering and sorting helps you find what you are looking for faster and easier. Front or rear motorcycle wheels; 2D or 3D wheels; finishes; motorcycle make and models.

Even by series if you're familiar with our lines of wheels: 3D SERIES (Spokes Extend To Hoop), BULLDOG SERIES (Wide Front Wheels), DIAMOND SERIES (3D Cuts On 2D Rims), ELITE SERIES (Most Iconic Wheels Out There), GT SERIES (Customizable Aluminum Inserts), OG SERIES (Harley & Indian OEM Replica Wheels), PERFORMANCE SERIES (Built For Speed & Strength), PRO SERIES (Famous Lip-Cut Rims), SIGNATURE SERIES (More Intricate Cuts), and TRIKE SERIES (Harley Trike 18x7, 20x7, & 22x9 Rims).

We even have matching rear rims, pulleys, air cleaners, and rotors to go along with any of our custom motorcycle wheel designs.

At SMT Wheels, when you call in you get a real person who can work with you every step of the way to get the correct motorcycle wheel for your bike. Our motorcycle wheels and parts are custom-made to order, so please allow 6-10 weeks for us to manufacture. Ask about our in-stock custom motorcycle wheels if you want them even faster.