Which bike makes the best bobber motorcycle? 7 best motorcycles to build a bobber

What Makes a Great Bobber Motorcycle Donor?

Realistically, you can turn any motorcycle into a bobber motorcycle. It all depends on your budget and what you want to achieve. In this guide, we'll focus on the best bobber motorcycles — the donor bikes you'll find on classified ads that are ideal for a custom bobber motorcycle build. But what exactly makes a good donor bobber bike?

The base motorcycle you choose directly determines how much work and how many parts you'll need. The closer the stock bike already feels like a bobber, the fewer modifications are required. The further it is from the bobber philosophy, the more extensive — and expensive — the build becomes.

Which Type of Motorcycle Should You Choose?

When it comes to building a bobber motorcycle, custom cruiser models are the natural starting point. Their low-slung profile, relaxed geometry, and classic lines already echo the bobber bike aesthetic. Many stock parts can even be reused in the build.

Photo: Kawasaki VN 1500 Classic — source: moto-station

The second great category of donors are retro motorcycles — roadsters from the 70s and 80s. Their simple engineering and accessible mechanics make them easy to modify. Models with a twin engine layout, like the legendary Yamaha XS650 or Honda CB450, are particularly well-suited because of their clean, balanced silhouette.

Photo: Yamaha XS650 — source: classic-motorbikes.net

Sport bikes and enduro motorcycles are generally not recommended for bobber builds. Their aggressive ergonomics and frame geometry require too many modifications to achieve a convincing result. Stick with cruisers and retro motorcycles for the best outcome.

The 7 Best Motorcycles to Build a Bobber

Which brands and models should you look for? Here's our curated selection of the best donor bikes for a custom bobber motorcycle project — from British classics to Japanese workhorses.

1. BSA 650

British motorcycles from the 60s and 70s make excellent bobber motorcycle donors. They already have the right lines straight from the factory. Unfortunately, clean examples have often been fully restored and command premium prices. Others are offered barn-fresh and still go for serious money.

The Triumph Twins and BSA 500 and 650 are always a solid choice for a bobber bike project. Note that Norton Commandos have isolated engine mounts, which can make frame modifications more complicated.

1970 BSA 650 — source: british-classic-motorcycles.co.uk

And here's what a BSA 650 bobber looks like after preparation:

BSA 650 Bobber — source: britbike.com

On this build, many original parts have been preserved. This base perfectly embodies the bobber identity — a motorcycle stripped down to its essentials and absolutely stunning.

2. Harley-Davidson Softail

Harley-Davidson is the most obvious choice for a bobber motorcycle build. It's the very essence of bobbers and choppers, and no brand carries more heritage in the custom motorcycle world.

Harley-Davidson FXSTBI Night Train — source: motorcyclespecs.co.za

A Harley is the quintessential base for a bobber bike, thanks largely to its legendary V-Twin twin engine and unmistakable exhaust note. Modern factory bobbers like the Harley Davidson Street Bob prove how deeply the bobber DNA runs in Milwaukee's lineup.

Harley Softail Bobber — source: harleydavidsonbikepics.com

For a more affordable Harley-based bobber build, consider the Harley Davidson Sportster. It's a proven platform with decades of aftermarket support and a massive community. The Sportster's compact frame and twin engine make it one of the easiest Harleys to convert.

Beyond Harley, other American brands offer compelling options too. The Indian Scout from Indian Motorcycle has gained a strong following in the custom bike scene. Its liquid cooled V-Twin delivers modern reliability with classic styling — a great alternative if you want something different from the crowd.

That said, most budget-friendly builds rely on Japanese motorcycles. And there are plenty of excellent options from the 70s, 80s, and 90s.

Single-cylinder and twin-cylinder bikes like the Yamaha XS650, Honda CB450, Suzuki 650 Savage, and Yamaha SR500 are already classics in their own right. You'll need patience — and some luck — to find one at a reasonable price. Brands like Moto Guzzi also offer interesting V-Twin donors for builders seeking a more European flavor in their custom bobber motorcycle.

3. Yamaha XS650

The Yamaha XS650 is arguably the most popular Japanese bobber motorcycle platform in the world. Its air-cooled twin engine, simple mechanics, and beautiful proportions make it a dream donor for any custom bike builder.

1980 Yamaha XS650 Special II — source: mikesxs

Here's a stunning XS650 bobber creation by Motoshop Tonouchi:

Yamaha XS650 Bobber — source: bikeexif

If the XS650 is out of budget, Honda and Suzuki four-cylinder models from the same era are reliable and affordable alternatives. You'll also find Yamaha Viragos, Suzuki 250 Twins, 400 Twins, and Kawasaki LTD 550s and 750s on the classifieds — all solid budget bobber bike builders.

4. Suzuki Savage LS650

Suzuki Savage LS650 — source: panzerriders

The Suzuki Savage (also known as the LS 650 or Suzuki Boulevard S40) was produced from 1986 to 2004. It features a big, punchy single-cylinder engine and remains one of the most affordable bobber motorcycle platforms available. Its simplicity makes it a favorite among first-time custom bike builders.

Suzuki Savage Bobber — source: Ryca Motors

This build uses a hardtail kit from Ryca Motors — and the result speaks for itself. Clean, mean, and unmistakably bobber.

5. Honda Shadow / Steed

The Honda Shadow is one of the most popular cruisers ever made. Originally developed for the US market, it became a worldwide success. Its liquid cooled V-Twin engine offers excellent reliability, making it a natural choice for bobber motorcycle conversions — both amateur and professional.

Honda Shadow VT750 — source: wikimedia

The Honda Shadow is especially popular with Remmotorcycle customers, as we offer a wide range of bobber parts specifically designed for this model.

This stunning build comes from one of our customers who used the Peanut tank with 8 cm tunnel and the pipe and carburetor kit to reposition the carburetor in a Harley-inspired style. A perfect example of an affordable custom bobber motorcycle build.

6. Yamaha Virago

While Honda dominated with the Shadow, Yamaha answered with the equally famous Virago — available from 125cc all the way up to 1100cc. With a V-Twin engine and classic cruiser proportions, the Virago is an incredibly versatile bobber bike platform.

Yamaha Virago 125 — source: moto-station

You'll find Viragos in abundance on classified ad sites, at every price point. This makes it one of the most accessible bases for a bobber motorcycle project — especially for first-time builders on a tight budget.

This heavily modified Virago bobber shows just how far you can take this platform. The stock bike becomes almost unrecognizable — a true custom motorcycle transformation.

7. Royal Enfield Bullet 500

After covering common and affordable donors, let's look at something rarer and more exclusive: the Royal Enfield Bullet 500. This Indian motorcycle icon features a thumping single-cylinder engine with character to spare.

1980 Royal Enfield Bullet 500 — source: gaadiwaadi.com

Turning a Royal Enfield into a bobber is sacrilege for some, an honor for others. But the result speaks for itself. Building a custom bobber motorcycle from a rare bike transforms it into a rolling piece of art.

Royal Enfield Bobber — source: YouTube

This bobber bike has soul. The bobber preparation suits the Bullet's vintage character perfectly.

Conclusion: How to Choose Your Bobber Motorcycle Donor

By selecting a cruiser or a classic retro motorcycle roadster, you're already on the right path to building a great bobber motorcycle. Whether you go with a Harley Davidson Sportster, a Japanese custom bike like the Yamaha XS650, or something more exotic like a Royal Enfield or Moto Guzzi — the key is finding a bike whose lines inspire you.

Take a step back, stare at the fuel tank, and admire its vanishing lines. If it speaks to you, chances are you've found your perfect bobber bike donor. We've shown you seven proven models, but remember: there are no rules in custom motorcycle building — only your rules.

Ready to start your custom bobber motorcycle project? Browse our bobber parts and accessories to find everything you need for your build.