1964 Harley-Davidson XLR-TT

| 11/5/2014 5:02:00 PM

Harley on display at the Barber Vintage Motorsports Museum

1964 Harley-Davidson XLR-TT

Country: USA
Engine: Air-cooled, V-twin four stroke
Ignition: Fairbanks-Morse magneto
Power rating: 70bhp @ 6,500rpm
Bore x stroke: 3" x 3-13/16"
Displacement: 883cc
Valves: Overhead, pushrod activated
Fuel system: Single Linkert carburetor
Transmission: Four speed, close ratio optional
Suspension: Front telescopic forks, rear twin shock
Brakes: Front and rear drum
Weight: 355lbs
Top speed: 115mph

The XLR was Harley's production racer, designed to compete in scrambles or "TT" races, where the capacity limit was 900cc. The XLR was a strange combination, with the chassis from the KR model, and a motor from the overhead valve Sportster. While the motor appeared to be similar to the production model, it had a shorter stroke and larger bore for higher rpm, producing more power, although the capacity remained the same. Motor internals were pure racing components, and in this form the machine was competitive with its main adversary, the Triumph 650cc TT Special.

Front-View of the 1964 Harley-Davidson XLR-TT

Close up of the Harley Davidson XLR on display at Barbers

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