AZSSMUK Roller Chain Breaker Detacher Tool for Size #25#35#41#40#50#60 415H,428H, 520,530 Motorcycle Bicycle Go Kart Chains Replacement

I like this chainbreaker. Tough and really reliable. Comes with a extra needle. I dislike that when I opened the package the item was super greasy. Overall 5 stars.

saved a 50 mile round trip to a shop... Be very very careful when backing the center post out. It easily comes out of the heat and the spring goes well lets say not where you want it. Re threading is a pain.

In Q &A section, someone asked if it would work on 530, 525, 520 chains and seller replied it would. I decided to call bluff and purchase it. Technically, it does but requires some grinding. It Will Not Work On Factory Pressed Rivets on 530, 525, and 520 Chain Without Grinding/Shaving Rivet A Bit First. It could work on the non-factory DYI rivets with the dimple on it without grinding. Chain I used it on was a 525. The Push Pin in device flattened (not harden steel) and felt like tool would break. Wished Id took a pic of it before tossing and installing the spare. Overall, its a solid design but intended for bicycle type chains or smaller.

Like it

Great product, actually was sold a small aggravating one from local motorcycle shop for $10 more than this one. Returned it and waited on this one to ship to me, glad I did, so much easier and includes replacement tips.

It works it’s just a real pain in the butt.

It works. Half decent chain breaker. The tips are soft but thankfully it comes with an extra. I would buy it again. I just think its great. I popped two links on some older 420 chain and mushroomed out the whole tip if of the breaker. I managed to file it down and there is a spare it was just kind of disappointing.

Have a 415h chain. Destroyed chain. Bends it. Doesnt push out the pin. Not new at this. Tried again. And same thing. Pushes pin out a little then proceeds to bend the chain. Been breaking chains for 30 years. Never seen anything like it.

I needed this for an FTC robotics project which has #25 chain. We had this included aluminum thing that hardly worked. So I bought this. It looks a lot like the USA made breaker from McMaster which cost 4 times the price. It looks and feels solid and comes in a box which implies precision engineering, but its not precision engineered at all. The cam holes are very sloppy so that the gripper teeth neither center the chain nor after 2 or 3 uses are even able to hold on to it tight enough while pushing the pin down. So the pin neither stays center and Im not entirely sure that this would fit in the #25 chain anyhow -- the teeth are just too large. It did break the chain multiple times, to the point that they werent remotely usable afterwards. Im now taking a recommendation from my robotics forum and bought a DarkSoul chainbreaker.

Worked really well better then other methods of taking apart a chain. I like that they send you an extra point for the tool but kinda wish they would drill the center of one of the handles to use as a storage space for the extra tip.