Oumers Bike Crank Extractor/Arm Remover and Bottom Bracket Remover with 16mm Spanner/Wrench. Professional Bicycle Repair Tool Kit

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.

Worked perfectly on my walker h9 ebike. Process was easy and the crank extractor was durable and affordable . It Took only 2 minute to get job done with the tool

Pretty descent for the price, only had a couple of splines on the socket that required a little filing so it would fit into the race for tightening and not slipping off. Other than that worked great!

Absolutely great crank removal tool used it once didn't have any issues and pretty self explanatory

Since I purchased an ebike - there isn’t many bike shops that you can go to for repairs. Many simply don’t want to be liable even if they can fix the bike. So for in- experienced bikers who don’t know their way around a bike, a YouTube tutorial and this tool will help you get your cranks off your bike for whatever reason. Pros: Tools work well and get the job done. Cons: None. Tools complete the job.

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.

This worked perfectly. There are a few tricks to make it do so. First you need a high pressure grease. If you are working on your own bike you should have some already. Apply a dab to the threads including the threads of the part that attaches to the crank arm. This keeps the aluminum from sticking to the steel. Second, use a square nut or make a square steel slug to sit on top of the crank spindle. This will prevent the threads from being damaged. This is why the Park Tool tip breaks. The tip on this one is solid. Third is the real trick. Apply heat! The crank arm is aluminum and the crank spindle is steel. They will and do stick under pressure. Put tension on the tool, then heat with a heat gun. This will expand the aluminum. When you cannot touch the metal finish removing with the tool. No need to blister the paint, it doesn’t need that much heat. Final note: the part that threads into the crank arm only needs to be finger tight. If it doesn’t thread in, your crank arm threads are damaged an need to be cleaned and repaired. BTW: The tool to remove the nut holding the bearings is a 1/2 inch drive socket ratchet. This was not a problem for me as I had rachet of this size. As with all ratchets, it is best practice to support the ratchet head while using. I had no damage occur during use. If you have a swivel handle ratchet, aligning your hand in the same plane as the BB nut will also reduce the twisting of the tool.

Needed to order this tool to get the pedal off my exercise bike to do some work to it. The tool worked great with a little elbow grease. It's a little odd when it first shows up and you see the parts and you aren't exactly sure how they work together. You can easily find videos online on how to use this tool and it's really not all that complicated just a little confusing at first but once you see how it works it's pretty obvious how to use it. It's quite small so it should be pretty portable should you need to take it somewhere. It does do a good job at removing the part it's designed to just expect to have to use quite a bit of force. The durability seems good enough but personally I would have liked it to be a little thicker for peace of mind.

Its definitely 5 stars. Fast shipment, qualified product!

Good merchandise, don't hesitate to deal with this seller.

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.

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.

部品を交換したくて購入しました。おそらく使用するのは最初で最後だろうと思い安価なものをと思い購入しましたが、使用に問題はありません。耐久性は分かりませんが、1回切りと割り切るなら充分使えます。