DYC Chain Breaker Tool for 420-530 Roller Chain, Universal Motorcycle ATV Mini Bike Dirt Bike Go Kart Scooter Bicycle 40 410 415 420 428 50 520 525 530 Chains

The DYC chain breaker tool is a strong and simple tool that works exactly as it should. The metal body feels solid and heavy, not cheap or flimsy, and the threads on the press screw are smooth with no binding. It lines up perfectly on 420 through 530 size chains and pushes the pins out cleanly without bending or slipping. The handle gives good leverage, and the tip stayed straight even after a few stubborn links. It’s compact enough to carry in a toolbox but sturdy enough for regular shop use. For the price this tool is excellent quality and makes breaking and resizing chains quick and easy. Five stars for strength, precision, and value.

Excellent tool for breaking light gauge motorcycle chain, seems sturdy, and so far has broken a chain three times successfully. It does take a great deal of hand strength, but for the price it's an awesome addition to the tool kit.

Pin broke first use. Just not attached too well.

This works well. I used it on a 2025 Honda CRF450R dirt bike with 520 chain. The key is to back the bolt part out enough that both holes fit over the chain pin. Clamp down and then drive the threaded pin pushing screw threw to push out the pin. Seems well made.

does what it should

We used it on a HD-428 chain several times to get the right length. Works flawless! Easy to use. Great price!

Very low quality. Returned

Took a lot more force than I would've thought but it worked. I just started it turned it a bit that backed it out like 3 or 4 times to make sure it was flush and not crooked. It felt like the tool would break but it didn't just make sure its not crooked on the chain. I prefer using this over grinding the chain off any day. For the price it worked as intended.