What is the maximum weight permitted for calves in rodeo calf roping competition?

It's obvious that rodeo is not taxing for the huge, powerful bulls that toss cowboys around like rag dolls, but some people may wonder if roping is hard on calves. A calf has more than tripled its weight when it is first roped, which is at 225-250 pounds, and is a strong animal. It takes the special roping and handling skills exhibited by the rodeo cowboy to manage the strength of a calf whose instinct is to flee or fight rather than cuddle.

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https://en.wikipedia.org/wiki/Calf_roping