Anybody have any idea what size the castle nut on the rear spindle is? I do not know and I can not fix my rear brakes until I get the nut off!

As well, any ideas for destroying rust and saving my brake cylnders inside my front brakes. They have not been changed since I bought the bike used and the cylinders are rusted solid and will not budge. I would like to salvage them if possible (budget tight on purchasing new parts).

Thanks for the help!

 

You can take the cylinders apart to try and clean them, but I'd say they are going to have to be replaced. Since water got in there, i'd replace all the seals as well, or you'll ruin the new ones. Dont forget you need to appply grease to the large seal on the outer edge of the drum.