Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
Its the hacksaw again im afraid
One thing to be aware of if considering the Tourmax needle roller conversion is that the 500 swinging arm bolt is essentially useless. The 500 bolt uses 2 grease nipples, one on either end, the idea was it pushed grease down the inside of the bolt and through holes about 2 inches down, this was then forced through holes in the collar and between the collar and the bush, this gave the lubricantion it needed but in practice it seemed to be a bit hit and miss.The Tourmax collar hasn’t got any holes in it, so to get grease to the needle rollers would be a big problem. You need the grease to be external to the collar like the 550 has, the 550 has a central grease nipple located on the underside of the arm and it in essence fills the entire tube up with grease. This is ideal for the Tourmax system, but you can drill the 500 arm and fit a central grease nipple if your considering this kit.