I'm not strictly a ZXR owner, but I have just bought a Zephyr 550 that has a ZXR front end. Problem is the brakes have seized and I reckon it's going to be cheaper to buy a second hand set of calipers from fleabay.
My calipers I think are from an L model, they look like these;

What I'd really like to know is can I fit the earlier (?) type as well (see below) or will this type not fit - if not why


Any advice or help on how to get some brakes on my bike is very much appreciated. Here's the bike for anyone interested.
