About 70.4098 Wheel Extensions
Increase your track width by 6 inches (15 cm) with the optional wheel extension kit. This kit includes four wheel extensions, one for each wheel, and extends each by 3 inches (for a total of 6 inches added width).
The extensions give your Ventrac a wider base for added stability. If additional weight distribution and stability is needed, consider upgrading to the dual wheel kit.
Note: Wheel Extensions can NOT be used with Dual Wheel Kit.