I would certainly try although others may tell you not too....the worst that could happen is that you have a bike that handles poorly....that being said it should work especially if the frame was originally intended for a suspension fork(look up the specs of the old fork that was on it and find out the axle to crown height of the fork then measure the road fork that you are thinking about putting on and i they are real close it should be fine)...did the stumpjumpers then still have horizontal dropouts?