Originally Posted by Bianchigirll

Hello and welcome to the forums.

Sure it could be done but how complicated will it be is the question. As already noted you'll need new derailleurs, and very possibly new wheels and of course the shifters. You might also need a new crankset and bottom bracket as well.

My first question would be, what model Raleigh? If you have something top of the line like an International or Professional that you really enjoy it might be worth the expense to find a 'donor' bike (with an english bottom bracket of course) and simply swap the parts over.

If you have a lower end model it may not be worth the expense.

Any pics of your bike? or just more information about it?