Topeak Super Chain Tool – Compact 7-Function Chain Breaker and Repair for Single & Multi-Speed Chains up to 12-Speed, Includes Allen Wrenches, Chain Hook, Pin Holder, Hardened Steel Body

First off, I'm a newbie to the world of bike repair. Needed a new chain for my Next mountain bike because I put 1000 miles on the old chain and wore it out. I knew I'd need a chain break tool, and this one got good reviews and looked high quality. When it arrived and I opened the box I almost laughed out loud. The tool was so much smaller than I thought it would be. Online it looks like a hammer. In real life it's a little Elf's tool! LOL! But when I used it to install my new Shimano CN-HG50 6/7/8-Speed Chain, this thing worked like a shop quality tool. It's a real precision tool, yet very light. That makes it easy to feel when the chain pin snaps into place. And because it's so small and light weight, I'm gonna add it to my biking back pack just in case. I would definitely recommend this tool to a friend. It's well made and well worth the money.

I ordered this chain tool and used it to remove my first bike chain. I almost damage my chain because the tool doesn't come with instructions, and the groves that hold the chain in place are a bit ambiguous as to where exactly to put the chain. A small little picture on the back of the packaging would have been great. Fortunately, no damage was done, and the tool did it's job. It feels strong enough to not break on me anytime soon, but isn't quite an everyday use tool for quality. It's good for me, since I don't plan on removing my chain any more than a few times a season (and that would be on the high side).

First i will admit i have never used a bicycle chain tool before but i have used a motorcycle one which is the same concept so im fairly mechanical. Never in my wildest dreams did i think it would be so easy. If anyone is afraid to do it fear not it is very very simple provided you still have your old chain to measure against your new one. I purchased this based on reviews to replace a 15yr old chain on a Jeep mountain bike i bought at sears (yes i know its not a real bike but considering 15yrs later the tubes still hold air after never been replaced im ok with that). This tool is incredibly tiny. My first reaction was wow this will never push a pin out of a chain it is that small. Weight comparison it weighs as much or little as a garmin 500 computer (very very light). Quality after breaking old chain and sizing new chain seems very well made. How to use: First thing to do is to break the old chain off the bicycle. This is where the chain hook comes in very handy. If you loose it fear not you can make the same out of metal clothes hangers. Hook the chain hook anywhere on the chain preferably on the bottom so its easier to work with more room. Put the chain tool on the link and turn into it contacts the pin. I prefer to have it dead center on the pin even though there very small its fairly easy to do. Next step is to push the pin out. A smooth continuous motion with the hex key is best as it will give you a nice smooth effortless push. For this step if you are not reusing the chain its fine to push the pin all the way out. Second step is to cut down your other chain. Same tool used for the process the exact same way. Measure the old chain vs the new one and de-link to size. If your chain is really worn then it will be slightly off, make sure you round off the new chain to the closest link SHORTEST to the end of the chain. Use the tool to push the pin out but this time be careful not to push the pin out all the way as its needed to put the chain back together. I pushed it thru until it started just getting difficult again then stopped and pulled the link apart. Although its not recommended you shouldn't reuse the pin you just pushed out slightly as it will have slightly deformed while pushing out. Best thing to do is to replace the pin. A drop of oil on it makes it much easier to go in. There fairly cheap to buy in a pack and are good to have. If you're using a masterlink make sure you have 2 INNER links so the masterlink fits, put it on the chain give it a quick yank will squeezing the link together and done. Don't forget to lube up the pins on the masterlink as well. The chain tool looks fairly quality, was able to break a 15yr old chain and de-link a brand new KMC 7speed chain without any bending or breaking of the pin or links. Tool gets a 5 out of 5 as an initial review. Another reason to buy this over cheaper single chain tools that only have one spot to break the chain is that you can also de-stress a link that has just been re-pinned if it feels very tight. Pros: Affordable. Quality. Size. Larger hex key can be used for leverage if needed. The pin is removable it comes as the whole screw mechanism. I wasn't able to find one online except for a store in the UK. There about 4euros each so cheap replacement pin. Cons: The chain hook is very sharp at the ends i would be careful keeping this in a multibag with a tube, do not keep this in your jersey pocket. I can easily see myself losing this if i keep it somewhere and forget where it is, its really that small not really a con just a heads up. Hope this review helps and if there's any question or comments feel free to ask. P.S. Don't think of this as a shop tool that can be used heavily and roughly. Its made to use in a pinch or for the home mechanic who replaces chains a couple times a yr. Update: After buying some new tubes with removable cores the end of the tool (once you unscrew the pin) can be used to tighten removable presta cores. 2 tools in one.

I'm just getting back into cycling and need some tools that I've never had before. I've always been the hands-on type of person, but I never did a lot of riding. With free tune-ups to my bike from the bike shop, I've never really needed much. But...That all changed. I had some problems with my bikes and also plan on doing more riding. This little tool did the job and did it well. That being said, is it the best chain breaker out there? I have no idea. This is my first chain breaker. Did it work for me? Yes. This tool will be with me on my biking trips. I trust it and it's very small. I like that it is not only easy to use, but it seems very well built as well.

This is a quality tool. It is very small so you can take it on your bike with you, maybe not the best thing for everyday use in a shop.

I’ve been pairing down my MTB trail repair kit and have been looking for a compact chain tool. This one pretty much fits my exact needs. I ended up not needing the included 5mm hex key since my bike multitool covers that (if you’re looking for a chain tool then you probably already have a multi tool), but I do like how the integrated tool holder secures the chain hook and has spots for two chain rivets if that’s what your bike chain requires. My only teeny gripe is that the ends of the chain hook stick out from the tool when it is stored. I can see this possibly wearing a hole in my seat bag or catching other items in there. So I “fixed it” by nipping off about 1/8” on each end with some wire cutters. It now sits flush with the tool, still stores securely on the tool, and still holds the chain well (see post-nipping pics). For my gram-weenie friends, on my scale it weighs 49g/1.75 oz without the included hex wrench and the tremendous weight savings of losing about a 1/4” of steel from that hook😜.

I am a physics major in college, and we did a kinetic sculpture project that used a lot of bike chain. I was constantly changing the length of the chain all semester, fixing the chain when it broke, and I kept this thing in my pocket during the event. Never let me down. The pin didn't even break once, and I am pretty sure I broke and put chains back together at least 50 times over the course of the semester. getting rid of the junk master links helped a lot too. those things are worthless. look up how to properly use one of these tools, and never use a master link again. It is also very small. Look for the tiniest pouch you can buy to mount on your bike, and it will most likely fit.

This little guy works great - so good that it's not just for emergencies; it's good enough to be your main chain tool in the shop. It's the usual high quality well designed type of product that's so typical of Topeak.