AUMSEN Upgrade Kit — Bigsby B5/B7 Front Roller 2-1/16"
An AUMSEN upgrade front roller kit for Bigsby B5 and B7 vibrato systems with 2-1/16" (52.5mm) spacing. The precision-machined roller reduces string friction at the Bigsby contact point, improving tuning stability and extending string life. Includes all mounting hardware.
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