Losing clicks on the adjusters is caused by incorrect measurements on the damping rod upper threads….and this causes the adjustment rod that sits inside the damping rod to be either too high or too low to enable the full range of adjustment, in your bike’s case, from 18 clicks reduced to 5 clicks.
I’ve been through this problem many times on my clients’ bikes, it happens on reassembly way more often than you think, it’s crucial for the damping rod to be set at 11mm thread from top of rod to adjustment lock nut.
This is the reason why you don’t have a full range of adjustment from my experience.
But, if revalving has reduced the available number of adjustment clicks, that’s news to me.. never heard of that before.
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