So i am working on swapping out my stock fork and triple trees for the ones off of a 1992 yz250. I wanted inverted forks and got a smoking deal on them. I already found bearings to swap the front wheel to accept the 17mm axle, but I am having trouble finding bearings for the neck tube. I know the OD of the neck tube is 48mm, but the steering stem ID is 28, and i cannot find any bearing that is 28x48 in any width. I have found a 28x46x13 bearing, but how would I go about shimming it? Any help would be appreciated.