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BMW R 100 RS Special by Ritmo
Sereno
Three years ago, Ritmo Sereno of Tokyo produced a
stunning orange BMW R80 track bike—the highly successful ‘Nakajima’ racer. Now a
Ritmo customer has commissioned a road-going version—and this is it. It’s based
on a 1991 R100 RS, but many of the other details are close to the track machine.
The suspension is Öhlins front and back, the
brake system is from Brembo and carburetion is Keihin FCR. Ritmo has paid a lot
of attention to weight, so the 230kg-or-so of the stock machine has been reduced
to a gossamer 175kg. (The battery holder, oil catch tank and the frame from the
engine backwards are handmade in lightweight aluminium alloy.) Power is now
around 80bhp at the back wheel, helped by a custom-made 2-into-1 exhaust system
routed through a modified center stand. Ritmo has documented the entire build on
its website—the link is
here (via Google Translate).
Source
bikeexif.com
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