DNA Fatty Forty 40-spoke wheels for Harley-Davidson

Why Fatty Forty wheels for your Harley?

• 40 thick spokes: a bold big spoke look that still looks calm and classic.
• Stainless steel spokes: just like the Mammoth. They don't rust and stay looking good, even after wet rides and a winter in the garage.
• A little more affordable than the Mammoth 52, with the same DNA Specialty quality.
• For all Harley-Davidson models: Softail, Dyna, Touring, Sportster and older models.
• Front wheel, rear wheel or a complete set, in the same sizes as the Mammoth.

16 inch Fatty Forty: open and airy

The smaller the wheel, the closer together the spokes sit. On a Mammoth with 52 spokes, a 16 inch wheel therefore looks very full. The Fatty Forty has 40 spokes, so there is more space between them. Especially on a smaller wheel such as 16 inch, that gives an open, airy look that suits it better. The wheel looks calmer and you see more of the hub and the tyres.

In the photos below you see a Softail with a 16 inch Fatty Forty front and rear, combined with whitewall tyres. Together they give the bike a true classic look. If you want 16 inch wheels on your Harley, the Fatty Forty is our recommendation.

Fatty Forty wheels in action

This is how the DNA Fatty Forty wheels look on a Harley. The first video shows a Softail, the second a Touring with a big 21 inch front wheel.

The videos only load when you click play. You'll find more videos on our YouTube channel.

Fatty Forty or Mammoth 52: which suits you?

Both wheels come from DNA Specialty, have stainless steel spokes and are available for every Harley. The difference is mainly in the look and the price.

Want as many spokes as possible and the most eye-catching look? Then look at the DNA Mammoth 52 fat spoke wheels. Prefer a slightly cleaner, more classic look, or want to spend a little less? Then the Fatty Forty is a good choice.

Sizes: 16, 18, 21, 23 and 26 inch

The Fatty Forty comes in the same sizes as the Mammoth: 16, 18, 21, 23 and 26 inch. DNA does not make other sizes, such as 17 or 19 inch. If you choose 16 inch, the open look of the Fatty Forty shows at its best. On a Softail, many riders choose a 21 inch front wheel with an 18 inch rear wheel. On a Touring such as a Road King or Street Glide, a big 21 or 23 inch front wheel is popular.

Curious how a big front wheel looks on a Softail? See our Heritage Softail with a 21 inch front and 18 inch rear wheel, including our advice on the rear wheel width.

Every Harley has a different hub and different bearings

Over the years Harley-Davidson has used many different axles, bearings, brake discs and drives. As a result, almost every year, type and model needs a different hub. That applies to the Fatty Forty exactly as it does to the Mammoth.

• ABS: if your bike has ABS, an ABS bearing goes into the wheel, in both the front and the rear wheel.
• Wheel size: the bearings are matched to the size of the wheel. A bearing for an 18 inch wheel does not fit a 21 inch wheel.
• Brake discs: a single or dual front disc needs a different hub.

That is why there is no fixed price on this page. We work out which version fits your bike and send you a tailored quote.

How to request a price

Send us on WhatsApp or by email (harleysenzo@gmail.com):

• Model and year of your Harley (or your VIN)
• Front wheel, rear wheel or both
• The size you want: 16, 18, 21, 23 or 26 inch
• Chrome or black
• Whether your bike has ABS, and a single or dual front brake disc

We check which hub and bearings you need and send you the price.

Directly from California

The Fatty Forty wheels come from DNA Specialty in California. We buy them there directly and ship them to Europe. That way you know exactly where your wheels come from.

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Frequently asked questions