This set from AEROX is used to accurately check and adjust the castor on a range of modern touring cars, such as the Schumacher Mi9. (Not for use with FT8 FWD cars.)

The castor meter is fixed with double sided tape to the included carbon fibre plate which is screwed accurately to the top of the hub carrier.

The castor value is clearly and easily shown on the digital meter making adjustments super accurate and easier than ever.

The unit measures just 36x36x20mm so is super small to fit in your pit bag.

You may check the castor with the chassis flat on a set-up board.  It may also be used when the car is on a set-up station.

The screws can be left in place if using the plastic hub carriers to save time in future use.

The Device can be charged using the included USB cable.