BMW unveils striking R20 concept with massive 2‑litre engine

During the Concorso d'Eleganza Villa d'Este, you can admire many classic cars and intriguing concepts crafted exceptionally for the occasion. In 2024, BMW showcased a particular vehicle and a motorcycle. I would be surprised if it went into production, but its engine is another story.

In the photos, the concept BMW R20 may not seem particularly impressive, as you can't fully appreciate the size of this motorcycle or, more specifically, its engine. It looks like a retro naked bike, a slightly larger brother of the R12. The wheelbase of the R20, which is 155 cm, is only marginally more significant than that of the production model (150 cm). Combined with the low-set handlebars, minimalist gauges, and a fuel tank shape reminiscent of classic models from the German brand, the whole design feels very compact.

Indeed, the steering head angle in the R20 concept is practically identical to that of the R12. It also features Öhlins Blackline suspension in both the front and rear, ISR brakes, and tyres typical for contemporary naked bikes—here, the only departure is the slightly wider rear tyre, which is 20 cm wide.

I would even call the BMW R20 concept a rather bland project. Sure, it looks like a decent custom bike with practically straight-through exhaust pipes on both sides, but is it ready to premiere at such an important event as Concorso d'Eleganza Villa d’Este? The name, or the engine, reveals what it's all about.

It's the next stage in developing the engine dubbed Big Boxer by the Germans, previously known as the cruiser/tourer R 18. However, it is even more significant here, with a capacity of approximately 2 litres. Of course, the drivetrain was also taken from the R 18. In my eyes, all this suggests that we are likely witnessing the debut of an enlarged engine rather than a new model announcement.

A retro naked bike with a 2-litre engine would undoubtedly be unique, but will BMW dare to offer such a niche model? I would be shocked. However, in the cruiser world, offering ever-larger engines is the norm. The 1.8-litre engine is perfectly adequate, but Harley-Davidson or Indian regularly provide a bit more. If the Germans wanted to continue competing with them, they had to propose a larger engine. These are simply the rules of the game. Do cruisers need more extensive and more powerful engines? Not necessarily. Do they attract customers? Absolutely!