Huh, thanks for the info. In my case, my gears only last a couple of months. Probably last longer now that I have better traction on my track and dont need to brake as hard.

Speaking of track, someone asked me how I made the curbs. I'm off today and was working on it this morning so here are some pictures.

This is a standard gray colored cord tunnel (cord duct) sold at HomeDepot.
I made triangular slits and applied a lot of heat using a standard heat gun
to make the duct stay in this shape. No adhesive used, I just reformed it.

I marked the floor with masking tape to try out the curb radius running
a few of my cars, make adjustments as needed.



Mounted the curb to the floor after a couple of test drives using double sided
carpet mounting tape. Only need to use a few slits of tape.

Then used some white and red duct tape..



I'm going to be working on the one on the lower right next..