2012 FIM Technical Rules Motocross

The accumulator installation must ensure that in the event of accumulator cell
leakage or explosion, the contents are kept away from the rider and do not
interfere in any way with the rider’s vision or the safe handling of the machine.
50.04.15 Power control
A ‘self-closing’ throttle (power control) must be applied.
01.53 SPECIFICATIONS FOR SIDECARS
(for Sidecars in Track Racing, please refer to the same article
in the same section)
53.02
The drive shall be transmitted to the ground only through the rear wheel of the
motorcycle.
53.06
Handlebars must be firmly secured to the forks. They must be at a height above
the mid point in the seat.
A steering head must be fitted which like the handlebar must not be attached to
the non-suspended part of the front wheel suspension.
53.07
To reduce the torque in the steering it is allowed to displace the front wheel and
the rear wheel leaving a maximum width of 75 mm between them.
53.08
The fuel tank must be sufficiently and independently protected from the ground.
53.09
Articulated Sidecars are strictly forbidden.
53.10
The Sidecar must be fixed to the motorcycle in at least three points, if it is not an
integral part of the chassis.
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General(e) Section