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

The right tool for the job. This made a complicated job, easy.

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.

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!

Nice tool. Bought to help service Native Watercraft pedal drives.

Works great

This little tool saved me a bundle of money and work at the local bike shop!

Got this to remove the crank arms so I could replace the stock 48 tooth chainring with a larger 56 tooth chainring on my Heybike Mars. I did need to apply some heat to the crankarms before I could remove them. This tool makes it so easy to remove the old crank arms. I would recommend this tool.

I purchased only for the bottom bracket remover. It worked, but the fit was loose requiring the user to hold the remover tight to the bottom bracket to keep the tool from slipping out. I used a ratchet rather than the somewhat cheep wrench provided with the kit. My recommendation to the manufacturer is ditch the wrench and put the savings into a better quality remover.