Skylety Crank Remover Bicycle Crank Puller Bike Crankset Arm Puller Compact Crankset Pulley Cycling Power Bottom Bracket Tool Repair Maintenance Remover for Bikes, Black

This tool worked great! It came dry so I added a very tiny little bit of oil to both sets of threads. I feel threads like these should be lightly lubricated. Especially when you consider the torque that you're going to be applying. Unscrew the center driver bolt on the tool so that it's even with the inner surface of the outer piece. If you look inside, none of the driver bolt should be past the inner surface. Then screw the outer piece into your crank arm. Making sure not to cross thread it. These are fine threads. Be careful and gentle starting it into the crank arm threads. And make sure you have it threaded correctly before applying any significant force and turning it in very much. Once you're sure it's in the threads right, turn it all of the way into the crank arm. It is important to make sure that the outer piece is all of the way into the crank arm. If you only have it in a couple of turns you could strip out the threads in your crank arm. It's important to have the driver bolt backed out enough so that it doesn't touch anything before the outer piece bottoms out inside the crank arm. Then, once the outer piece is turned all of the way into the crank arm, start turning the driver bolt inside the tool to remove your crank arm. It's almost harder to explain how to use it than to actually use it. I'd buy it again without hesitation. And I'm not getting any form of compensation for this review. It seems very well made to me. It was very simple to use and worked great!

Makes pedal removal so much easier

It worked exactly as demonstrated on YouTube! Great value for the price!!

Warning: May damage the crank or spindle if not properly used. There is no information about how to use this tool. It comes with a removable cap. This should be used only if the spindle is larger than the cap otherwise it will no push on the spindle and attempt to remove the threads from the crank.

Tool works just fine!!! I used it to take the crank off a jetson bolt.

It is my opinion that you will not be able to remove the crank without this tool. the little end cap that you see in the picture is not really substantial enough if you need to use it. I had to insert a washer to add strength.

It is too short to remove my cranks. It made contact but bottomed out half a thread later.This one is the short one in the photo.

Does the job expected, wonderful bicycle tool.