these will fit a nx2000 or a 240 but you will need the calipers in order to install on a 240... i bought these thinking they would fit on my g20 but it turned out the bolt pattern is different. these will be an upgrade for 240s they are thicker and have a larger surface area. i lost the boxes in the process of installation, so my loss is your gain,i paid 40 each i think so will sell them both for 40 obo.. i have pics if anyone is interested