They come with a paper in the box.. and I added 5 to 10 on top... the specs they had are.. not tough. So yea, just read the paper, and add +5 to +10 on top of what they say. And after a ride or two, just check em and make sure they didnt loosen up. Also -- If the bolt doesnt fit, dont force it.. you'll jack teh threads up.. the stock bolts work well in this situation!