Some weeks ago, I've bought a brand new pair of wheels for my X and after 5/6 rides, i see the rear hub has broken at one disc fixation... So, question is : - Are 450R and 250R the sames and which year could be usable on my 05 450 X ? - If i have to buy an aftermarket, what do you recommend ? - Anyone have one in very good shape in his garage ? - Could be also an opportunity to buy some reds hubs ?