older TTs with wheels on the rear frame/bumper

[Doug33]

This may have been discussed before, but I could not find anything with search. On my drive down to Florida this week, I passed several older TTs (appeared to be 20+ years old) that had small wheels mounted on the back bumper or on the rear frame. I have not seen these wheels on newer TTs.

First, what is the purpose of the wheels, and second, why do only older models have these wheels?

[Doug33]

Dtaylor wrote:
Most of those sit low to the ground. They are there to "roll" when going over grade changes that would otherwise drag the frame or bottom of TT. BTW, they are still available should you wish to add them

My new TT sits very high off the ground - much higher than the previous TT. But even the previous TT never dragged on the ground. I take it older TT models had smaller tires and a lower suspension?

It makes sense on real long TTs, but the ones I saw were 25' max.

[69_Avion]

I have a set on my 34' Avion. It needs them to keep from dragging coming out of high driveways, etc. I wouldn't want to put them on a trailer with a weak frame, but the Avion is fairly heavy duty.

[sbowman871]

Wheelie bar.

[colliehauler]

To keep from dragging the ground.

[Dtaylor]

Most of those sit low to the ground. They are there to "roll" when going over grade changes that would otherwise drag the frame or bottom of TT. BTW, they are still available should you wish to add them