I'm needing some quick advice before I have to start sending parts back. I've had to replace my rear calipers and discs for a while now. Weather was good so I quickly ordered some parts only to then realise that I wasn't paying attention or they were mis-labelled.

So today - weather perfect - I pulled my wheels off only to slap myself in the forehead. I've got smaller single piston calipers on the back of it. Both the new calipers and the new discs are much bigger - maybe for a 110?

Here's the question. Can I put these on if say I get some new brake lines? Mine are a bit knackered anyways so they could do with replacing. Some flexible ones would do the trick but I can't use the existing ones as the hole for the brake line is in a different area (side vs. top) on the new ones.

Any thoughts or suggestions? I really need to sort them out next weekend now. Thanks!