BMW R45 Classic Bike Gallery
The R45 and R65 series, which replaced
the larger and older 500 and 600cc models. Much neater
and smaller than its predecessors, the R45 nevertheless
still weighs a hefty 4251b, the same as its larger
stablemate. Two stages of tune are offered on the
R45's oversquare engine, 26bhp for the German market,
where it gets into a lower insurance bracket, and
35bhp for the rest of the world.
On the export version, peak power is reached at 7250rpm,
while maximum torque is 27.51b ft attained at 5500rpm.
As is now legendary with these Berlin-built bikes,
the engine is of fiat-twin configuration with valves
operated by pushrods and rockers. It may not be the
most modern layout available on a motorcycle but,
over many years, it has been improved and developed
so that it is reliable, efficient and very smooth.
Performance is not a strong point of the R45 but
it will reach a top speed of 95mph. Fuel consumption
on the other hand is excellent, with an average figure
of 55-60mpg being possible. The bike has a 4.8 gallon
fuel tank, so it is obvious that it was made with
touring in mind.
Transmission is by five-speed gearbox and shaft drive,
while braking is by a single cross-drilled disc at
the front and a powerful drum at the rear. Standard
fittings on the bike include cast-alloy wheels, audible
warnings for the indicators, twin mirrors, electric
starter and a plug for fitting an intercom device.
The standard of finish is about as good as can be
found on a motorcycle, but there is a price to pay
for that: the price itself, for the smallest BMW produced
was more expensive than many 750s.
||Engine - 449cc, 4-stroke F-twin
Top Speed - 90mph
Dry Weight - 182kg (400lb)
Launched - 1979-1988
Maximum Power - 35bhp
Fuel Consumption - 70mpg
|1978 BMW R 45
|1980 BMW R45
|1980 BMW R45
|1981 BMW R45
|1983 BMW R45
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