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BMW bills the R 20 Concept as a big boxer roadster

May 24, 2024

At 1,802 cc, the R 18’s engine rivals that of a compact sedan. Its cylinders are roughly the diameter and length of toilet paper roll. If you thought the 245-pound, 1.8-liter monstrosity was large enough, BMW’s new R 20 Concept is here to tell you, “You’re wrong.”  

The Bavarians bill their latest design exercise as a “big boxer roadster” for several reasons. First and foremost, it packs the same oil-and-air-cooled flat twin found in the R 18 cruiser. Except this time, the massive mill is even massive-er, at 2,000 cc. BMW doesn’t specify whether the 200 cc displacement bump is due to a larger bore, stroke, or a combination of both. It does, however, humble-brag about the powerplant’s new oil cooler, cylinder head covers, and belt cover. Talk about flexing the wrong muscles. 

An aluminum tank reminiscent of the legendary R 100 series rests atop the frame’s backbone. The fuel cell also commands the eye with its "hotter than pink” paint job. BMW photo.

To support the beefier boxer, BMW engineers bent chrome-molybdenum steel tubes into a double-loop frame. That robust structure attaches to a hybrid swingarm composed of an aluminum Paralever upper strut and a lower steel unit. Between those two elements rotates an exposed driveshaft, a design feature that’s now synonymous with the R 18 family. 

A slotted disc wheel is a highlight of the R 20's design, but it doesn’t do the roadster any favors in the weight department. Maybe that’s why BMW didn’t list the concept’s curb weight. BMW photo.

Completing the R 20’s sporty stance is a 17-inch disc wheel at the rear and a 17-inch wire-spoked front wheel. The latter comes shod in a 120/70 tire, while the former’s 200/55 rubber suits the concept’s portly proportions. Although the R 20 flaunts Öhlins Blackline suspension, its 27.5-degree rake and 1,550 mm (61-inch) wheelbase may temper its corner-carving abilities. It shouldn’t have any problems stopping, though, with dual six-piston ISR calipers up front and a four-pot binder out back. Anchors aweigh, matey.

The R 20's cockpit is a mash-up of classic and contemporary. The quilted black Alcantara seat and 3.5-inch micro TFT display say as much. BMW photo.

A concept bike just isn’t a concept bike without some show-stealing detail and the R 20’s halo-style LED headlight fits the description. (Well, the hot-pink gas tank and 2.0-liter boxer do, too, for that matter.) Comprised of a daytime running light cradled within a 3D-printed aluminum ring and a main headlight that seemingly floats within that circle, the entire assembly is a taste of the digital and analog age. It's both retro and right now. 

The LED headlight array presents a novel approach to the classic round headlamp. BMW photo.

What’s important to remember about the R 20 is that it’s a design exercise. As such, BMW hasn’t confirmed whether a production model will follow in its wake. That doesn’t mean the German marque isn’t testing the waters with the attention-grabbing build. 

History repeating itself? 

BMW originally introduced the R 18 as a concept bike in May 2019. Less than one year later, the Munich-made cruiser shipped to dealerships worldwide. That fast timeline was primarily fueled by the public’s positive response to the Concept R 18, much of which wore off by the time the homologated R 18 rolled into showrooms. The R 20 faces similar prospects.

Is the R 20 just a cool idea or does it access an untapped customer for BMW? BMW photo.

Odds are, a production model R 20 wouldn’t feature the concept’s floating saddle (especially with its integrated taillights), six-piston brake calipers, or rear disc wheel. It certainly wouldn’t sport megaphone tailpipes. Not without a massive catalytic converter, at least. The 2,000 cc boxer, halo headlight, and Paralever swingarm all fall within the realm of possibility, but such premium preparations also come with a premium price tag. 

It all begs the question: why build up a concept bike if the production model falls short of the original idea? There’s a chasm between thinking a model is cool and thinking it’s cool enough to purchase. For many customers, that’s a chasm that the R 18 couldn’t bridge.

Will it be the same story for the R 20? Can a flashy concept generate enough interest to force BMW’s hand? Can social media posts by BMW Motorrad CEO Markus Flasch really move the needle? The real question: Is anyone really asking for one? (And by “asking,” I mean willing to buy one.) After all, that’s the one question that wasn’t clear with the R 18.