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The Oumers Bike Crank Extractor and Bottom Bracket Remover is a professional-grade, durable tool kit designed for universal compatibility with 20-tooth splined bottom brackets and standard square tapered cranksets. Crafted from high-strength steel and including a 16mm spanner, it ensures damage-free, efficient crankset removal for both home mechanics and outdoor cyclists.









| ASIN | B0716NX7KC |
| Best Sellers Rank | #11,777 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #15 in Bike Tool Kits #22 in Bike Shop Tools |
| Brand Name | Oumers |
| Color | Orange |
| Customer Reviews | 4.5 4.5 out of 5 stars (7,571) |
| Date First Available | May 8, 2017 |
| Included Components | Spanner, Wrench |
| Item Package Dimensions L x W x H | 8.15 x 5.31 x 2.56 inches |
| Item Weight | 11.04 ounces |
| Manufacturer | Oumers |
| Material | Velour |
| Model Name | Extractor/Arm Remover and Bottom Bracket Remover with 16mm Spanner/Wrench. Professional Bicycle Repair Tool Kit |
| Package Weight | 0.33 kg |
| Part Number | Oumers Bike Crank |
| Size | Large |
| Style | Professional Bicycle Repair Tool Kit |
H**N
Good combination tool
No complaints. My experience with these job-specific tools (crank arm / bottom bracket) was about 30 years ago, probably with expensive Park brand - at the local / now closed bike shop. I needed this for my old 1996 GT LTS-3 that I'm refreshing. It's pretty inexpensive, and works just fine for pulling the crank arms and Shimano sealed bottom bracket unit. About the only other tool you would need is a 1/2 inch drive long breaker bar for the bottom bracket removal, but mine was pretty stuck though. Pretty decent combo tool, for the price.
I**S
Allowed for easy installtion of Pedal Assist!
This tool worked out great. Included everything necessary for me to remove my crank as well as the inner crank sleeve. It includes the crank arm puller as well, which made things so much easier. When your building a customers/custom E-Bike, everything needs to be organized and clean. Having a bunch of extra tools, ratchets, sockets, extensions, etc., is much more complicated and disorienting than a 3 in 1 tool. Could be a bit thicker, I guess. Overall, the value for your money is great. This tool continues to produce ROI each time you need to lay your eyes on a crank or crank arm. Don't laugh at the Styrofoam :)!! Its a work in progress. I am still working out the measurements of a decent 3D printed, quick release battery case. Returning to the product review! All I can say is that it served its purpose, and quickly got me out of a bind when a pedal assist request came up. I would purchase this item again, and I would most definitely recommend this item to a friend or relative.
R**N
Good tools for a very good price! I'm happy with what I got!
Great price. While the chrome kinda gives them a "cheap" look they feel rather solid. The crank remover tool worked just fine with no issue, screwed into the crank without a problem or hard to the crank. The BB removal tool is heavy and feels like good steel. Worked just fine taking the BB out of my fixie and putting the new one in! Did not damage the spindle or threads for the spindle bolts. These tools worked for what I needed and saved me alot of money. Even the little wrench feels solid, not flimsy or weak at all!
E**S
Works as a charm
I needed to replace a stripped-out crankset on a kind of rusty single-speed bike. The only bike shop close to my place was a fancy one, and they wanted $80 for labor. I took my chances and ordered this little tool. This was my first time doing this specific repair, so I wasn't sure what to expect. The extractor worked flawlessly. Not gonna lie, it took some time and good effort to get the thing twisting, but it slowly got easier, and in the end I was able to remove the old crankset and install the new one. I'd recommend putting a little grease on the threads (after cleaning off any dirt) and being careful not to cross-thread the crank and the extractor. Just take your time and you should be good. Would recommend, there are plenty of YouTube tutorials on how to do the job. You'll spend only 1/5 of what the shop would charge, and you get to keep the extractor for next time!
S**9
Good deal for $10
This is not the highest-quality tool that you would find in a bike shop, but for what it is -- and for $10!! -- it is great! It's hard to find instructions and a little tough to figure out. The orange handle goes with the two pieces (thread them together), and if you move the handle from one side to the other, it is essentially two tools in one. One side is a socket wrench that removes the hex nut that is usually underneath the dust cap, and then the orange handle slides over to the other side of the tool to become the crank puller. (If you've never done this - find a video online!) The third piece with the teeth does NOT go with the orange handle, but rather requires a wrench to use. It is used to remove the ring with all the grooves. One downside of this tool is that the handle is very short, and since you REALLY have to wrench on it to remove the crank, it is hard to get enough leverage. But overall, for $10, this totally does the trick. You might spend $50 to buy each tool separately.
C**S
Good value for the price.
Received it today and promptly used it to remove two crank arms. Didn't use the wrench, used an adjustable wrench instead. Was a little concerned it might pull out of the threads, but it was a needless worry. Very happy with it. Used the bottom bracket socket yesterday on a very difficult to remove unit. Cleaned the engagement area very thoroughly on the bike. Sprayed it with a solvent to try and make it a little easier. Added a bolt through the socket to secure it from moving off the bracket. Was quite a chore to loosen. Eventually had an 8” pipe wrench and a 4’ cheater bar and the non drive side finally came loose. Drive side was much easier. Socket worked wonderfully. Hard to believe it didn’t fail under that much torque. Turned out to be a great deal. Highly recommend the set, but I also suggest researching some videos on how to make the task easier.
H**E
Use caution...Don't over tighten
I used the puller to remove the sprocket side crank on a Giant ATX bike. The bottom bracket insert had loosened up and needed retightening. I was a Shop Foreman at a German auto dealership for 30 years. I have seen $300 German pullers destroyed. All pulling tools like this have to be greased prior to use. As mentioned in other reviews this is not a professional quality tool. The bolt does not appear to be hardened. It became very difficult to turn with the supplied wrench and I STOPPED. I placed a ball bearing, approximately 11 mm in diameter, between the spindle and the puller bolt. This drastically reduced the force required to turn the bolt using the supplied wrench and the crank arm came off easily. There was no visible damage to the threads . The bottom bracket tool worked perfectly. Make sure all grit and grime is removed from the flange splines. I'm sure a bike shop would have charged more than twice what the tools cost, so it was worth it to me. With the addition of the ball bearing I'm confident this puller will last for years.
B**U
Great tool
The tool is good quality and worked great. I think people have problems because cranksets on bicycles tend to be dirty and frozen in place. Take the inner bolt out of the tool before you start and screw the outer part into the crankset. The threads may be dirty and the tool may not screw in easily. You may have to do a series of tighten and back offs to get the tool all the way down into the crankset. Be careful not to cross thread. When the bottom part of the tool is screwed in, put the inner bolt in and tighten it. The crankset may be tight and you may feel like you need a bigger wrench to pull the crankset. A bigger wrench may work, but you may also strip the threads out of the crankset. You will be better off tapping the inner bolt and the crankset a few times with a hammer. The vibration from the tapping will loosen things up. It works best to tighten the puller bolt, then tap. I did this a few times and the tight crankset came off easily without a big wrench. I did not use the bottom bracket puller.
E**N
Amazing item!
Its definitely 5 stars. Fast shipment, qualified product!
E**E
Good merchandise, don't hesitate to deal with this seller.
Good merchandise, don't hesitate to deal with this seller.
M**.
Did the job as advertised!
Arrived on time. Quality materials. Did the job seamlessly. I would suggest applying some grease on the crank puller treads for a smoother operation. Also, you would probably need a spanner since the one comes with the kit is not long enough to give enough leverage.
C**N
Impeccable !
Outils achetés pour remplacer le boîtier de pédalier de mon VTT, et enfin j'ai pû le démonter. Par contre prévoir un levier suffisant afin d'avoir la force de dévisser le boîtier et sortir les manivelles. Clé Allen de 14 ou clé plate de grande taille fortement préconisés... La qualité globale est satisfaisante, tout se visse bien, j'ai pû procéder au remplacement de mon boîtier pour la toute première fois et il en avait besoin. Rien de mieux que le DIY. Démontage ET reassemblage sans soucis.
S**Z
Good price and easy to store
Works for its intended purpose and has a little footprint, which is a plus for someone that only uses this tool once in a while
Trustpilot
3 days ago
1 month ago