Guyker 6-in-line Vintage Guitar Locking Tuners - Stable 1:15 Ratio

In this review the Guyker 6-in-line vintage locking tuners are assessed for players who want improved tuning stability without a full headstock refit. The bottom line: these replacement machine heads offer a clear upgrade path for ST and TL style electrics, with a precision 1:15 gear ratio and sealed lubrication that delivers finer tuning and longer service life. Installation is straightforward and mounting hardware is included, so a player looking to reduce string slip and speed up changes will likely be satisfied.

Key Features

• Precision gearing: The 1:15 gear ratio provides finer pitch adjustments for more accurate tuning during setup and on-stage tweaks.
• Sealed lubrication: The sealed housings keep lubricant sealed in, helping the gears run smoothly and resisting grime buildup over time.
• Locking function: The locking mechanism secures string ends for faster string changes and improved tuning stability.
• Complete mounting kit: Screws, bushings and washers are included so the tuners can be fitted without hunting for extra parts.
• Durable construction: Cast housings and metal knobs give a sturdy feel and a vintage aesthetic that matches Fender-style headstocks.
• Oval button design: The oval shaped buttons offer a familiar ergonomic grip for manual tuning adjustments.

Who It's For

These tuners are best suited for electric guitarists playing ST or TL style instruments who want a budget-friendly upgrade to locking machine heads. They particularly benefit gigging players and hobbyists who change strings frequently and value consistent tuning and easier string winding.

Players seeking OEM-level cosmetic match for an original vintage instrument or those requiring a specific branded spec might look elsewhere; also, users who need custom shaft sizes or non-standard spacing should verify the parameter drawing before ordering.

Pros & Cons

Pros

• Good tuning stability thanks to the precision 1:15 gear ratio and locking feature.
• Includes all mounting hardware for a quick installation onto compatible headstocks.
• Sealed housings and metal knobs feel robust and keep lubrication contained for longer life.
• Offers solid value for money with a vintage look that many users find appealing.

Cons

• Build quality impressions are mixed among users, so a small number of units may feel less rigid than higher-end branded tuners.
• Compatibility depends on shaft spacing and the parameter drawing, so measure your headstock before purchase.

Specifications

Brand	guyker
Configuration	6-in-line, ST TL style
Gear ratio	1:15
Housing	Cast housings with sealed lubrication
Buttons	Oval shaped metal knobs
Included hardware	Screws, bushings and washers

Our Verdict

The Guyker 6-in-line locking tuners are a practical, value-oriented upgrade for ST and TL style electrics that need better tuning stability and faster string changes. With a 1:15 gear ratio, sealed housings and a full mounting kit, they deliver tangible benefits for most players, though those wanting premium build uniformity should compare higher-end options first.

Frequently Asked Questions

Are these tuners locking?
Yes, they are locking tuners designed to clamp the string end for improved tuning stability and quicker string changes.

Do they include mounting hardware?
Yes, the package includes screws, bushings and washers needed for installation on compatible headstocks.

Will they fit my guitar?
They are made for ST and TL style 6-in-line headstocks; check the parameter drawing in the product images to confirm shaft spacing and hole sizes before ordering.