Per Manufacturer:

AiM MyChron5 / MyChron5 2T Kart Dash Display - Steering Wheel 6 Hole / Red

The AiM MyChron5 Kart Steering Wheel range has been developed to provide an ideal solution for mounting your MyChron5 dash logger (available separately). Lightweight but rugged and ergonomic, it allows you to put your MyChron5 in the best position: right in front of you!

Designed with a flat bottom and a curved top, MyChron5 steering wheel is made of an anodised aluminium frame covered by chamois leather: the Nabuk (similar to suede) covering on the sides has been added to maximise grip, bringing the total control of the kart in your hands. Available in red/black with 3/6 holes, the MyChron5 Steering Wheel is a "must-have" tool for all MyChron5 owners.

Measuring 340 x 320mm. 

Comes with OTK/Tony Kart Steering Wheel Angled Boss/Hub - 6 holes and hardware.

Additional mounting bracket is required to mount MyChron5.