need track help

[gwinnraptor]

I want to buy a track online to replace my F'ed up one right now, what all do i need to know. I currently have a 1-3/4", clipped every window track 121"X15" for my SRX 700.

what do i need to know about this one besides 121x15 and that its 1-1/4"

 

[lhviper]

I have a 1.250 ripsaw with 192 studs with 1500 miles I will sell. Let me know.