Round or Square, Aluminum or Nylon backers when studding?

[ApexerER]

Thank you

Thank you for all your imput. I ordered 192 Top Dog 1.38 with round aluminum backers.

 

[**sj**]

square either plastic or alum ...and of course steel is always more reliable than round...especially when the stud is over 1.250...
tall nuts will help a lot..

if properly installed with enough quantity for power etc..plastic is a nice way to save weight..
I have some extras for sale in the classifieds

 

[Mikecam]

I like the square alum backers. Easy for me to turn the track and look for the backer that is turned, that way I know it needs to be tightened. When they get loose they turn. Never had a problem yet with 2400 miles. Have only retightened 3 or 4 in total all last winter.