Tuning mechanism set for 7-string with Backlocking function
With the Sperzel Trim-Lok unstable tunings and laborious string changes are a thing of the past. Thanks to the Backlocking -function, the string is simply tightened and clamped in the adjusting axle. Accordingly, the string requires fewer windings on the axis and becomes tuning stable faster.
On the back of the headstock, the Trim-Lok mechanism uses a space-saving Pin locking mechanism, so even tighter arrangements on small headstocks are no problem.