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What cha’ll know about the Yamaha Moko Powa D10? This weird Yamaha hyperbike is one of only 10 ever made. It is also capable of an insane top speed for a motorcycle made in the ’80s. However, despite all that, just look at it. I don’t care how rare and fast this marshmallow mega-bike is; it’s uglier than the east end of a horse that’s headed west

Yamaha Moko Powa D10 in blue and white
Yamaha Moko Powa D10 | Cars & Classic

What the Hell is the Yamaha Moko Powa D10? 

Honda Powa D10 by Hans Walther
Honda Powa D10 by Hans Walther. Very little is known about these bikes | Hans Walther

It may look like the Michelin Man’s ride, but it’s even sillier than that. The Powa D10, aside from looking like dog vomit, is fastern’ greased lightning and is rarer than hen’s teeth. According to Silodrome, it was made by a human named Hans Walther of Powa Design in Switzerland, not a giant, white, tubular tire mascot creature. He designed at least one other similarly grotesque bike, the Honda Powa D10. The Yamaha Powa D10 is a Yamaha FZ750 dressed in a cheesy sci-fi movie cosplay costume. 

We can’t talk about the Yamaha Powa D10 without discussing its most, uh, distinguished features; its bodywork. This abomination wears an eight-piece suit of plastic fairings. The FZ750 fairings were removed to make room for the new plastics. Silodrome notes, although it’s ugly, the design was said to have been influenced by the early dustbin fairings used on some Grand Prix motorcycles beginning in the 1950s.

Of the 10 motorcycles made, only six are believed to exist still. 

The Yamaha FZ750

Yamaha-FZ750 ad from the '80s
Yamaha FZ750 | Yamaha

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As reported by Silodrome, by the mid-’80s rolled around, the writing was on the wall; large two-strokes were getting phased out due to increasingly tight emissions standards. The TZ750 was a popular two-stroke originally but eventually transitioned to a four-stroke. Before it did that, though, the TZ750 was regarded as one of the hottest superbikes on the scene. I mean, a two-smoke 750cc bike is a terrifying concept. 

The FZ750 was the successor to the TZ two-stroke. The only goal was to keep the power the same as the old bike but in a four-stroke package. Yamaha engineers developed a new inline-four-cylinder engine to be fitted to the frame transversely, a common layout since the Honda CB750 back in 1969. 

This hot new motor had an all-aluminum design with double overhead cams, and unusually, it has five radially positioned valves per cylinder, three for intake and two for exhaust. Despite there being little to no evidence for the claims, the Powa D10 is said to squeeze enough power out of the FZ750 engine to hit a top speed of 200 mph. The bikes are now so rare and valuable that it seems unlikely that anyone will ever test them. 

The Yahama Moko Powa D10 for sale

Again, only six of the original 10 ugly hyperbikes are thought to exist still. This means that the 1985 Powa D10 seen here will likely fetch a large pile of catch at auction. This bike is very original and shows only 4,474 miles on the clock. Being this original, low mileage, and unrestored makes this rare bike, out-of-sight rare. 

The rare Yamaha Moko Powa D10 is currently listed in a public auction with Cars & Classic. Check out the listing here.