Check the rear shock preload adjuster.
<blockquote> While not described in the HondaService Manual, the preload adjuster is most likely low on fluid and is notworking properly. After unscrewing the knob all the way, if resistance is notfelt within two clicks, fluid needs to be added. This is discussed in severalthreads.</blockquote>
==Preload==
* Use a light hydraulic jack oil or motorcycle fork oil* There are (approximately?) 36 clicks in the preload cylinder from zero to full preload, 180 degrees per click* A couple of the ST-Owners posts [https://www.st-owners.com/forums/threads/st1300-pre-load-fluid-replacement.106715/ ST1300 preload fluid replacement]
* [https://www.st-owners.com/forums/threads/st1300-rear-suspension-resetting-the-pre-load-adjustor-video.165543/ ST1300 - Rear suspension / Resetting the preload adjustor]
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==Rebound and damping ==
More about tuning the rear suspension.
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