What wheel sizes are available on Tow-Pac trike kits?

The Insta Trike is available in 8 inch steel or 12 and 14 inch aluminum wheels.

E-Trike is available with 12 or 14 inch aluminum wheels

GoKit can be had with 8 inch steel or 12 inch aluminum wheel

MiniTrike is available in 8 inch steel or 12 and 14 inch aluminum wheels