DIKOO #25-60 Roller Chain Breaker Cutter (Non-Slip Handle) #25, #35, #41, #40, #50, #60, 415H,428H, 520,530 for Bicycle,Motorcycle, Go Kart Chains Replacements

I used this chain breaker to break the chain on my 80cc motorized bicycle with a chain size of 415. Worked great! Though I had a friend help me because I’m not too experienced with breaking chains. The clamps don’t hold the back plate so just be patient as you push the pin out. It will work. I even had to out a link back on the chain, a little tricky but it worked!I tried everything for my bike such as chain tensioners and such. I had a such a long chain I had to break it, I’m still using a chain tensioner for the minor slack.I was a little skeptical of buying it because of the bad reviews but it worked great!