Belts 9mm or 15mm?

[Chris_Elston]

Originally Posted by Oblarg

I have quite literally never seen one of these break (in fact, I've only ever seen a HTD belt from any source break once, in almost a decade of FRC). Are you sure you're using them within specs?

One thing to watch out for is that belts can break if they are crimped (this was the cause of the one failure I have seen, and is the cause of most of the ones I've heard about).

The first time trying 9mm belts, VexPro broke all the time, replaced with Bando, same application, same tension, never broke again rest of season, "back in 2012".

Never crimped the belts or altered them, straight off the shelf.