MATINA Bike Bottom Bracket Tool - Double Sided Lock Wrench for Bicycle

had to redo my bearings and needed this tool just the right sizewell made and will last a long time

Worked as described to remove lock ring. One side worked better than the other side for my case.

It did not really fit my bike, but I was able to use it somewhat anyway.

Awesome tool

Rough stamped steel, still has sharp edges from stamping. Had to file so as not to be a knife multi tool. Spanner spacing wrong making it difficult to engage more than one tang. Bought as a loaner tool I wouldn’t mind not getting back. Now I hope it goes missing.

Works great

The Martina BB Wrench worked on my Genesis bike, enabling me to service the bearings. BUT, I almost returned it, as it fit very loosely. I'm not a bike expert, so I don't know if it was a true potential issue with the wrench, or purposely made in a bigger size, for greater compatibility. But, again, it did work, and of my 3 bikes, only one has this bottom bracket design, so I couldn't compare the size on other bikes. Also, the edges were somewhat sharp - so I think it should've been lightly sanded to prevent injuries. I usually wear gloves when working on my bikes. It's the unexpected injuries that can get you.

I was a professional bike mechanic at one point and this tool would not have kept up. Luckily, I just need a cheapo because I'm not a bike mechanic and most of my bikes don't have this bottom bracket style any longer. It's a stamped steel tool and they didn't take any time to hone down the sharp edge. I had to take the handle to the wire wheel for a few minutes to get it so I wouldn't bleed when I used it.The tool size is barely in spec and while I can get the job done with it, it's a task to keep it engaged. You get what you pay for.