>>76542448 (OP)
>the DYELs ITT
You will not tear your biceps on preacher curls unless you are on PEDs or are a weakling using far too much weight with horrific form.
I have repped 135lbs for 3x10, never had a single issue.
Bicep tears happen for roiders because the tendons do not grow at the same rate the muscle does.
Preacher curls are literally the best bicep mass builder there is.