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Old 03-22-21, 05:51 AM
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bulgie
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Originally Posted by guy153 View Post
<snip> then they brought out something called "653" for a time which was apparently 753 but minus the heat treatment.
Not quite. 653 had 531 forks (no heat-treat @ 120,000 psi), 753 rear stays (full heat treat @ 195.900 psi), and main triangle was 653 which is stronger than 531, I have heard that was via cold-working (@ 138,500 psi). They called this "Variable Strength Technology". It came in road and "All Terrain" versions.



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