Bikes

Beauty Is Wedging an RZ350 Motor into an RS250 Frame

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I am about to ruin your day, because I am going to show you something that you will want very badly, but can’t have. It is what happens when you have the best of both worlds. It is the two-wheeled version of having your cake and eating it too. 

This machine is called the Yamaprilia, and as the name implies, it is a mashup of the Yamaha RZ350 and the Aprilia RS250. Using the two-stroke, twin-cylinder engine from the RZ350, and the twin-spar aluminum chassis of the RS250, owner Gareth Evans is looking for the best of both worlds.

The build is an interesting one – and is featured by our friends at BikeEXIF – as it involves Evans fabricating more than a few parts himself – something that is easier to do when you have a background in mechanical engineering, like Evans does.

Notable custom parts include the bike’s rear subframe, triple clamps, neck pin, rear axle, chain slider, swingarm pivot, and rear brake caliper carrier. Most of the nuts and bolts you are looking at on the machine are made from titanium, and the bodywork is obviously made from carbon fiber.

Other go-fast parts include the Öhlins forks off of a Ducati Panigale, as well as an Öhlins TTX rear shock. The wheels are carbon fiber BST units, with brakes by Brembo, with 320mm discs up front and an RCS19 master cylinder.

Like everything else on the build, the RZ350 engine has of course been given the once over as well, with all the internals replaced with high-performance components. No word on power and weight, but the Yamaprilia does look the business.

We know that you already want one in your garage…and so do we.

Source: BikeEXIF

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