Wheelbase

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‘Wheelbase’ is the distance between the centre of the front axle and the centre of the rear axle.

Wheelbase length has a big influence on the axle load distribution.

Longer wheelbase :

  • Less load transfers between the front and rear axles during acceleration and braking.
  • A longer wheelbase can be able to be fitted with softer springs
  • Increase the level of comfort.

A short wheelbase will give :

  • More load transfers between the front and rear axles during acceleration and braking.
  • Smaller turning radius for the same steering input
  • NB. Too short a wheelbase may make a car act nervously on corner exits and in a straight line.

The wheelbase should be as short as possible, but not shorter than 1525mm, to optimize the ability to make sharp corners.

Anti Squat and Dive can be used to limit the longitudinal load transfer.

image : Wheelbase

Wheelbase (l)

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