Wheels: It is certainly much more convenient
to have identical wheels on both the tow
vehicle and the caravan so as to enable the
same spare wheel/tyre(s) to be suitable for
both vehicles.
‘Identical’ means having (a) exactly the same
rim diameter, width and offset, and (b) exactly
the same hub-mounting flange design, stud
hole pattern, and stud diameter. However,
often it is cost-prohibited, or not practical, to
do this.
Tyres: Likewise, it is much more convenient to
have identical tyres on both the tow vehicle
and the caravan. The choice of tyre is
important, especially the tread pattern, which
primarily depends on whether or not your
travel plans include sandy, muddy or snowcovered
roads, or even wet grass. Traction is
vital under these conditions. It is pointless
having plenty of engine power available if the
tyres cannot obtain sufficient grip.
Many people prefer to use light truck tyres,
rather than passenger-car tyres, on their
caravan, especially if any offroad travel is
anticipated. While ‘chunky tread’ tyres have
major offroad advantages, their road noise
and tread wear on paved roads will be worse.
Towbar overhang: Unlike fifth wheelers where
the articulation point is above the rear axle of
the tow vehicle, caravans have a significant
disadvantage regarding handling and stability
on corners because the articulation point (the
coupling) is some distance behind the rear axle
of the tow vehicle.
It is convenient to have identical
wheels on the van and tow vehicle.
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