The Lainer Suspension shock preload adjuster lock ring is designed for Sachs 50 shock systems as used on Beta RR models from 2015 to 2018. It is intended to secure the preload setting so the spring position stays stable in service. Use it as a replacement part during servicing or when the original ring no longer locks correctly.

Built For Real-World Suspension

A preload lock ring is a simple but critical component: it backs up the adjuster ring and helps prevent unwanted movement after setting rider sag. If the lock ring is damaged or can’t hold tension, preload can drift and make setup inconsistent.

Inside the System

This part sits on the shock body thread and is used to lock the spring preload adjustment once set. It is not a tuning part on its own; it supports accurate adjustment by holding the chosen preload position.

Serviceability

  • Replace the lock ring if it is rounded, cracked, seized on the thread, or no longer tightens securely against the adjuster ring.
  • Replace if the threads are damaged or if the ring cannot be adjusted without slipping or binding.
  • Do not replace if the ring threads cleanly, tightens properly, and the preload setting remains stable—focus instead on correct spring rate and overall shock condition.

Compatibility

  • Brand: Lainer Suspension
  • Application: Sachs 50 shock system
  • Fitment: Beta RR 2015–2018 (as listed)

Setup & Workshop Notes

  • Inspect shock body threads before installation and ensure the ring turns freely by hand before final tightening.
  • If preload adjustment is difficult, check for thread damage or contamination rather than forcing the ring.
SKU LOCK_RING_SACHS-TM
Brand Lainer Suspension
Unit Of Measure ea
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