I thought this should go in the Bicycle Mechanics area, but for some reason it wasnt working so I had to put it here, hope you dont mind! Basically, im a total newbie to cycling. I recently got given a reasonably old road bike, I have no idea of the make or anything because the person resprayed it a few years back(not a particularly good respray either), and you cant see any of the decals or anything.
The problem is that it has very old friction gear shifters, which are on the end of the drop-down bars, which i really cant get to grips with very easily. I was wondering if its possible (with not too much cost, I dont mind the time and effort as I quite enjoy playing around with mechanical things) to change to the Indexed shifters that are integrated with the brakes. As i have relatively little idea about how the index system works compared to the friction system, I assume it would literally just be a case of changing the brakes and shifters and the cables(which, in the state their in, could do with a change to be honest), or would it also be necessary to change the derailleur??
Thanks in advance for any help!