Originally Posted by
Randybb
Hmm, never thought of the knot in the cable trick. Is the knot really strong enough to prevent the cable from pulling through? Rocks just seem so much more solid

Honestly I never had to do this before - I just think it's a neat trick. The only time I ever had a cable bust I was just a few miles from home on the road bike so I huffed it in the 11t. But looking at this, I'd say it's enough to hold in the gear you want, as there actually isn't very much resistance in a derailleur spring.