bought it this summer with 16,000 miles. Had race tech front springs put in=great improvement. Rear shock seems sacked, preload and the other adjustment on full. What is a source for rear shock or is it rebuildable? I-90 motorscport triumph dealer was no help and said to find it on my own,after a $1500 tire change and full service tune and front end work bill. And any suggestions for a Triumph dealer that cares in Washington state?