Originally Posted by JohnBrooking
Were you able to order extra headlight mounts by themselves, or do you have an equal number of lights that all happen to use the same mount? Blinkies are cheap, but I don't want to buy another expensive headlight just to get an extra mount.
Niterider uses the same mount that it has always used. I have several light heads (I get them at swap meets and on sale at bike shops) but the mounting bracket has always been the same. Most of the shops where I live carry Niterider and have lots of extra mounts. The mounts can be sort of expensive for the universal ones (around $30) but they also make, and you can find them if you look, a cheaper version. But I don't think that Niterider is unique in offering spare mounting brackets. Light and Motion, Nite Hawk and others also offer spare mounting brackets.
If you are using a less expensive light like the Cateye EL series, I don't know if you can get spare brackets but you might try contacting the manufacturer of your system to see what they offer. Most of the ones that I've seen will sell the bracket direct to you rather than make you go to a shop, if you like.