Howdy,when front braking hard I'm getting a lot of juddering threw the handlebars,from everything I've tried it looks like I've got a slightly warped disc although there is no pulsing in the lever.just wondering before I buy new discs that might not sort it would anyone have 1 straight front disc in the shed that would fit a 2005 gs12 that i could borrow or buy to see if I can sort it and put my mind 2 rest b4 I buy new discs?

