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

Watching a video will greatly help using this tool.I used this on an exercise bike. The thing is, before using this tool - be sure you have the correct direction spin before removing the exterior nut. You may also need to use a hair dryer to heat up the nut before removing it. I actually used a ratchet from something else to take out the nut. You can do it with this tool as well, just unscrew the silver piece to expose the socket that will fit onto the nut.Once the nut is removed, this tool comes in. What happens is the black piece screws into where the not was, and then you tighten this tool down, and it pushes the crank arm out of the extrusion it's on. That part worked great for me.

These tools worked perfectly for removing a seized crank arm off of my bike. I was iffy about using this crank remover at first because the head looked like it was going to be too big to fit inside the bracket, but I was able to get that part screwed in just fine using the included wrench to tighten it well into the bracket.When you attempt to remove a crank. Make sure that the black piece of the crank remover is securely tightened as well as the inner head. To use the included wrench like I had done. Unscrew the silver end piece on the crank puller and slide the wrench right through the puller.

Tool works well had so much torque on the puller I thought it was gonna break but it didn't. Will but tools of this brand again if needed.

Es muy completo para su función y es muy fácil de usar

Worked awesome for what I needed

Fixed my problem. I would recommend.

I had to get this to take the crank arm of my ridstar q20 and put on talaria/surron style pegs. Would definitely recommend works great and at a sweet price.

Does the job. Used to replace the left pedal crank on my Proform stationary bike.