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Tamiya is supposedly the only RC car maker that made a three wheel GP
racer (Side Car). The Tamiya model is based on Rolf Biland and co-driver
Ken Williams ride from 1978. Tamiya actually has made an naming error when
calling the model the B2B, more on this below.
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The
Side Car Rolf Biland raced with in 1978 was this named BEO77A. The BEO had
many new features like drive on both rear wheels, very limited function of
the co driver (no more need to hang over the wheels in turns) and the
engine was moved back, behind the driver, from the normal motorcycle
position. |

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The
1978 season was a success for Biland and Williams, they won the
championship with their BEO. But the FIM had during the season seen that
the new Side Car racers were so dominant that they decided to make two
classes for 1979; the B2A and B2B classes. B2B being the one for
"prototypes" Side Car racers. (like the BEO)
Biland, as one of the lead figures in Side Car Racing
those days (and still the most winning driver, to date) did what he had to
and entered in both classes, with different bikes. Now also with a new
co-driver, Kurt Waltisperg.
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Ironically Biland/Waltisperg won the B2A class in
1979
The split into two classes only lasted for 1979. The FIM
decided for 1980 to ban the Prototype class (B2B) due to costs raising,
but protests were made and a compromise was made for 1981 where it states:
A sidecar must be a vehicle that is driven only by a single rear wheel and
steered by a single front wheel, the rider must use a motorcycle handle
bar as opposed to a steering wheel for steering, and there must be active
participations from the passenger.
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So,
what did Tamiya do wrong? They named the 1978 racer for B2B, but that was
before the B2B class was invented, in 1979 :-) |

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