Product description: (we are here for you)
As popularity grows for the BUSH tail wheels, so does the need for our BUSH pins. We now have longer pins that reach 8". Alaska Bush tail wheels are wider and we must give people the option to have Extra Long HD AK Bush pins for their Bush Plane if needed. Most tail wheels don't need these long pins so we have made them an optional product. Even with the use of the collars, these AK Bush pins have a fully contained 7-inch width.
If you just have a normal or standard size tail wheel and don't need these, the extra long pins would get in your way.