SR71BLACKBIRDXX Posted March 4, 2012 Share Posted March 4, 2012 My buddy just bought fork springs and a rear shock spring for his 01. Shock has to be removed anyway so I dont need any special "C" shaped shim. I was gonna machine one up quick for him. Ive heard 3mm, 5mm, 6mm?? Whats the best ticket? I need the proper ID and OD as well. Thanks bros! Quote Link to comment Share on other sites More sharing options...
Zero Knievel Posted March 4, 2012 Share Posted March 4, 2012 The one John sells is 6mm. Other than that, I don't know what thickness to recommend for your particular need. Quote Link to comment Share on other sites More sharing options...
Wario Posted March 4, 2012 Share Posted March 4, 2012 I've tried two, one at ~5mm, and one of John's at 6mm. Can't say my highly calibrated butt can tell the difference. Part of the equation could be where the forks are in the triple trees, fork oil age, fork spring age, etc. I do know that setting the rear shock preload correctly makes a HUGE difference. Quote Link to comment Share on other sites More sharing options...
tomek Posted March 4, 2012 Share Posted March 4, 2012 Do one thing at the time and evaluate the change . Quote Link to comment Share on other sites More sharing options...
SR71BLACKBIRDXX Posted March 4, 2012 Author Share Posted March 4, 2012 I think hes settled on 5mm, but what I really need the other two dimensions. Inner and outer diameter of the spacer. Quote Link to comment Share on other sites More sharing options...
John01XX Posted March 4, 2012 Share Posted March 4, 2012 I think hes settled on 5mm, but what I really need the other two dimensions. Inner and outer diameter of the spacer. Mike, The outside diameter is not important. My spacers are rectangle: 1in x 1 1/4in aluminum Size of hole or notch cutout measures 10mm on mine My spacers are actually 6.3mm thick as that was a common aluminum size available and the European riders tested and found that 6mm was the ideal size with stock front suspension set up. The hole needs to be big enough to go around the top shock stem only Quote Link to comment Share on other sites More sharing options...
SR71BLACKBIRDXX Posted March 4, 2012 Author Share Posted March 4, 2012 Thanks John. Im not trying to undercut you or anything, and since his shock has to come all the way off, I just figured I could turn a piece of round stock down to "x" dimension and bore a hole of "x" dimension. Lop it off and grind it to 5mm. Essentially making a washer. Your piece is awesome and saves a bunch of time, but like I said, we have to take the shock off anyway, and to make a "washer" is 100 times easier than to make what you have. So Id be good with a washer that measures say 1" OD x .438" ID x .2" thick? (which would be a hair over 10mm ID and another hair over 5mm thick) Quote Link to comment Share on other sites More sharing options...
John01XX Posted March 4, 2012 Share Posted March 4, 2012 yep that would work just fine You may find it easier to stop by your local Lowes and pick up a couple large washers to make a 5-6mm stack They are not visable and since you have the shock completely off, it would be quick and easy and virtually no cost Quote Link to comment Share on other sites More sharing options...
slowrideCX Posted March 4, 2012 Share Posted March 4, 2012 yep that would work just fine You may find it easier to stop by your local Lowes and pick up a couple large washers to make a 5-6mm stack They are not visable and since you have the shock completely off, it would be quick and easy and virtually no cost That is exactly what I did before I knew John sold them. 3 washers worked out to ne 6mm and they have been in there now for 6 yrs . Quote Link to comment Share on other sites More sharing options...
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