I bought a motion Pro chain breaker from a local dealer this week. Got home and tried to break my ERT. Made sure the pin was centered before I brought the extractor pin down and wrenched it. I completly mashed the extractor pin and spring. The roller pin didnt even move. It was weird because it didnt even feel like it was pushing hard enough to move the pin. Almost like the extractor wasnt hardened or something.

I took it back to the dealer and they exchanged it for a new one (thanx again). I am very weary that it is going to do the same thing so I am gona video tape the whole thing (from me opening the package untill the pin comes out or the tool breaks) and post it for Motion Pro to see (video stream) if I break the tool. It isnt rocket science. Even the guy at the parts counter said that Motion Pro extractor pins are cheap and break allot (and of course are not under warranty).

Anyone else have issues with this extractor?

I don't have the Motion Pro, I have one called The Whale chain breaker. It is about ten times as heavy duty as the MP one. It works great on all chains and I haven't had any trouble with it.

I've used the Motion Pro Chain Breaker w/o any difficulties for years. They used to offer two different styles.

What's the model number of the Motion Pro chain breaker you're using?

I am using the mini chain breaker with the folding handle. It was the only one my dealer had.

I just setup the DV camera and went through the whole process. It Broke again. I called Motion Pro and they said to take it back to the dealer for a refund. I took his name down and will get my money back tomorrow.

The tech I talked to said that they have seen this happen on some new DID chains because DID made their pins harder and Motion Pro is working on the problem.

Too bad this happened, but its nice to hear you're getting a refund and especially nice to hear that Motion Pro is working on the problem (hopefully). DID has a hefty chain tool called the KM500 that works well. I had one, but it was stolen along with other tools. I've since bought a Motion Pro Jumbo chain tool to replace it, but haven't yet tried it. I also bought their chain alignment tool (which is easy to make) and its a nice addition to make certain your chain is truly straight. The other Motion Pro tool I really like is the bead buddy for changing tires. It's simple and works well.

the new motion pro chain breakers are crap (the small one with folding handle at least). i had the same problem. D.I.D. ERT chain. i needed a chainbreaker quick, and the only one the local shop had was the MP. he warned me to use it just right, which i did. the pin isn't hardened enough, and will just bend every time. with the d.i.d. chain and mp breaker, you'll have to use a grinder on the chain first. take off the head, and it will do it (barely). i went through 2 of them in one night on the same chain. guess the d.i.d. really is tough as nails.

Motion Pro is an excellent company and I have had excellent results with the tools I own. If they are working on a fix it should be a good one. Ath least they have stood behind the tool and suggested you get a refund.

Koden,

I did the same thing with and ERT chain. I emailed Motion Pro via their website and described the problem. They promptly sent me a new center pin part along with additional instructions that included grinding off the head of the chain pin to be removed. This works fine in the shop, but I don't think it would be an easy task on the trail.

Can any of you tell us if other chain breaking tools require that the head of the chain pin be ground off too? I would like to get one that is able to break the chain without the grind....

Thanks,

RH

If I have to grind the head I dont need a breaker. I have always used my dremel until now. Looks like I will keep using it.

I just did same the thing two days. My Motion Pro chain breaker broke, and that was after I ground off the pin. But having to grind the pin is BULLS..T. I ran down to the local Kawi dealer and bought a good one for $16.00 it has a sliding T-handle and it pops the pins right out without grinding.

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I wish I could give you a more difinitive answer, but with my DID KM500 tool I just pushed the pin through without any grinding on 520 chains. Now whether that was per the instructions I don't know cause I never had instructions with it and it simply worked no matter how I abused it. I lost/misplaced the instructions for my new Motion Pro Jumbo chain tool , but I think I recall reading a blurb when I first got it that said to grind off the head. Here's a link if you want to see the DID KM500 tool.

http://www.didchain.com/install.html

The DID chain tool costs about $130 and it will push a rivet out, press a side plate onto the pins, mash the head of a rivet to secure the side plate and also cut the chain if you wish.

Flynall,
I have a chain breaker that you just hit the end with a hammer. No grinding is needed. I got it at my local accesory shop. It is called the Whale chain breaker. It works great. Currently it is breaking chains for four different bikes. I have used it for more than one year and it hasn't failed me once.

i agree that motion pro is a great company for the most part. this is the only tool i've seen consistent problems with. but it's designed to take on the trail, and there is absolutely no way it would do its job on the trail. the parts guy at chaparral said he had a whole pile of them in the back that had been returned. these were supposed to be new ones with more hardened pins, but obviously they still aren't cutting it.

Wow. Maybe it is a recent problem. I have had one of the little compact MP chain breakers for over 3 years and have never had any problems. I bought a replacement pin just to have as a spare, it is still sitting in its package.

And yes I've used it on a lot of DID chains. I've used it on every brand of chain there is between my bikes and all of my friends. I've even used it to put a chain back together, with a used chain-pin (which is obviously a no-no), and the pin in the tool didn't bend in that case. Weird.

Did they change the design? On the one I have it would be pretty hard to bend the pin since it is recessed in the tool.

Mine looks just like the one on their web site: (pic )

yep, looks the same. the parts guy here told me the quality of their pins dropped dramatically a while back. evidently they had a lot of problems and complaints, so they supposedly upgraded the quality of the pins again. unfortunately, they didn't upgrade enough. as long as you don't extend the pin before torquing it down, it shouldn't be bending. but it does. you must have one of the old-high quality breakers. wish i did.

I too have busted quite a few pins on that model MP breaker, but only with the DID chains. They break RKs without trouble.
I bought the bigger MP breaker kit but still grind the heads off first, just in case.
Last year we broke about 5 RK xrings in a mater of a few months (old). Now I'm only using DID ERV2s with the rivet type master links.
The way i look at it is that if the DID is so stinkin strong I doubt I'll break one on the trail (knock on wood) and if i do I'm probably screwed because I'm not about to bring the big breaker kit in my fanny pack!

Tim

I have noticed problems w/ DID master links. They are a tight fit! So much so that I just quit buying them.

But I never buy pre-cut chains, so I always have to use the breaker to subtract some links. I bought at least two DID X rings before I switched to Regina, and I don't remember them giving me any trouble in that regard. But getting the master on and off was a chore.

I think using a grinder on the pin is a good idea, but I've always been able to quickly press the pin out with my much abused little MP breaker. I recently bought their multi-function $100 breaker/press etc., but only because I needed something to use on my friends KTM cam chain (plus I like having good tools).

I certainly hope I don't have any problems w/ my new, fancy, does-it-all MP chain tool. I also bought their fanny pack multi-tool, that thing is sano. Stainless steel so it won't rust and corrode.

Took it back to the dealer. Called Motion Pro and had the dealer talk to them while I was there. Got my $$ back. I think I will stick with the Dremel. It work's, even if it does take more time.

Now, if the rain will just hold off one more day!!

I've recently busted two MP chain breakers on the same DID x-ring chain. I had the same chain breaker a couple years ago and had no problem with that one on DID chain.
One thing I noticed about the new chain breakers is that they are made in Taiwan. I'm of the opinion that nothing good comes out of China or Taiwan toolwise. If not made in the USA, most tools suck.