AUMSEN Upgrade Kit, Bigsby B5/B7 Front Roller 2-1/16（52.5mm）.
AUMSEN Bigsby vibrato upgrade: AUMSEN Upgrade Kit, Bigsby B5/B7 Front Roller 2-1/16（52.5mm）. Precision-machined for drop-in installation and long-term reliability. Designed and specified to match the original guitar hardware geometry.
Features
CNC-machined to tight tolerances. Each batch is inspected and hand-polished.
Dimensioned drawings on every product — verify fitment before inquiring.
Fitment questions? Email contact@aumsen.com — we reply within 1–2 business days.
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Spec, stock, custom work.Drop us a line.
Builders, techs, and players — ask us about fitment, tolerances, or anything we can machine. We usually reply within 1–2 business days.