Top nut is M26x1.25, Bottom nut is M30x1.25. Neither of these are common sizes but I was able to find nuts on a Roketa parts website so I ordered them. I also ordered the wheel spacers for the front wheel I was missing. Just need some spacers for the rear wheel made.
For people that are running the R1 shock. Have you found that it hits the stock muffler? I have no intention of using the stock muffler but I was planning to ride the bike to a different location to weld up the new headers
Current bikes:2006 DL650, 2006 Ural
Past bikes: XT225, TTR125, CRF50 1974 DT125,1970 TS250,1985 v45, 1989 zx600c, 1978 GS400x, 1999 GS500E, 2001 GS500E 2005 Z750s, 1977 GS400e, 1982 GS1100ez, 1997 GSX600, 2007 VFR800, 2003 KLR650, 2003 FJR1300, 2006 DL1000, 2000 KLR650, 1999 WR360, 2008 DL650, 2005 DR650,2008 EX650r, 1996 CR500, 1982 GS450T