Buying Guides
Gearless Guitar Tuners vs Locking Tuners: What’s the Difference?
Locking tuners are one of the most popular upgrades in the guitar world, and for good reason. They make string changes faster, reduce string slippage, and are available from nearly every major hardware manufacturer. If you’ve upgraded to Sperzel, Hipshot, Grover, Fender, Gotoh, or Schaller locking tuners, you’ve made a solid improvement to your instrument.
Gearless guitar tuners are a different category of hardware entirely. They share the word “tuner” and they both hold your strings — but the internal mechanism, the tuning precision, and the way the string interacts with the tuner are fundamentally different.
This guide explains how each type works, where they overlap, and where they diverge — so you can make an informed decision about what belongs on your guitar.
How Locking Tuners Work
A locking tuner is a geared tuner with one addition: a clamping mechanism inside the string post that grips the string after you thread it through. This clamp means you don’t need to wrap the string around the post multiple times. You thread the string, engage the clamp, tune to pitch, and cut the excess. Fast, clean, and reliable.
The tuning mechanism itself is identical to a standard tuner. A worm gear meshes with a pinion gear to rotate the string post. When you turn the tuning button, the gear ratio determines how many turns it takes to rotate the post one full revolution. Most locking tuners operate at gear ratios between 14:1 and 18:1.
The “locking” part refers only to how the string attaches to the post. The gear mechanism that controls pitch is the same as any traditional tuner.
How Gearless Guitar Tuners Work
A gearless guitar tuner has no worm gear, no pinion, and no rotating string post. The string is pulled straight through the tuner body by a threaded mechanism — a precision screw that moves axially when you turn the tuning knob. There is nothing to wind around. The string enters the tuner, passes through, and is held at the other end by a clamp at the end of the tuning machine.
Because the tuning motion is a direct thread engagement rather than a gear mesh, there is zero backlash. When you turn the knob, the string moves immediately and precisely in the direction you turned it. There is no dead zone, no play, and no settling. The tuning action is exceptionally smooth — the continuous thread engagement feels silky and precise, with none of the stepped resistance you feel from meshing gear teeth.
The tuning ratio on gearless designs is typically 40:1 — meaning 40 turns of the knob moves the string mechanism one full unit of travel. Compare that to a locking tuner’s 14:1 or 18:1. The result is fine pitch control that geared tuners physically cannot achieve. Small intonation adjustments that require careful, delicate movements on a geared tuner become simple and repeatable on a gearless guitar tuner.
What Locking Tuners and Gearless Guitar Tuners Have in Common
Both locking tuners and gearless guitar tuners solve the same core problem that standard tuners have: string slippage at the post. With a standard tuner, the string is held in place by friction from multiple wraps around the post. Those wraps can shift, settle, and unwind — especially during aggressive playing, string bends, or tremolo use.
Locking tuners solve this with a clamp that grips the string mechanically, eliminating the need for multiple wraps. Gearless guitar tuners solve it by pulling the string straight through and locking it with a clamp at the end of the tuning machine — there is no post to wrap around in the first place.
Both designs deliver a meaningful upgrade in string stability over standard tuners. Both make string changes faster. Both are legitimate improvements to any guitar.
Where Locking Tuners and Gearless Guitar Tuners Differ
The difference is in the tuning mechanism itself — the part that controls pitch.
Gear backlash. Every worm gear has some amount of backlash — a small amount of play between the gear teeth where the worm meets the pinion. On high-quality locking tuners, this backlash is minimal and well-controlled. On lower-quality tuners, it can be noticeable as a dead zone when you reverse direction on the tuning button. Gearless guitar tuners have none. The threaded mechanism is always engaged, always in contact, and always responsive.
Tuning ratio. Locking tuners typically range from 14:1 to 18:1. A few premium models reach 21:1. Gearless guitar tuners operate at 40:1. This means gearless tuners offer roughly double the precision of even the highest-ratio locking tuners. For players who tune frequently, use alternate tunings, or need to make very fine pitch adjustments, this difference is significant.
Smoothness. The feel of the tuning action is noticeably different between the two categories. Locking tuners feel like what they are — a well-made gear mechanism. The motion has the characteristic resistance of worm gear engagement. Gearless guitar tuners feel entirely different. The direct thread engagement produces a continuous, silky motion with no stepped resistance. Players who switch from geared tuners to gearless consistently describe the smoothness as one of the first things they notice.
String path. On a locking tuner, the string wraps over the top of the post (even if only a partial wrap) and bends downward toward the nut. The break angle over the nut depends partly on how many wraps are on the post and the height of the post itself — which is why staggered-height locking tuners exist. On a gearless guitar tuner, the string exits the tuner body and travels directly to the nut. The break angle is determined by the tuner’s position on the headstock, and it’s consistent regardless of string gauge or how you installed the string.
Moving parts. A locking tuner has a worm gear, a pinion gear, a rotating post, a clamping mechanism, and associated housing. A gearless guitar tuner has a threaded body, a knob, a bearing, and a string clamp. Fewer moving parts means fewer points of wear and fewer things that can develop play over time.
Aesthetics. Locking tuners look like traditional tuners — a tuning button on one side of the headstock, a post on the other, with a locking thumbwheel added to the back. Gearless guitar tuners have a completely different appearance. The machined stainless steel bodies, knurled knobs, and compact cylindrical profile create a look that is unique on any headstock. It’s a distinctive, modern aesthetic that signals the player chose their hardware deliberately.
Gearless Guitar Tuners vs Locking Tuners: Category Comparison
| Locking Tuners | Gearless Guitar Tuners | |
|---|---|---|
| Tuning mechanism | Worm gear + pinion | Direct thread (no gears) |
| Typical tuning ratio | 14:1 to 18:1 | 40:1 |
| Backlash | Minimal (varies by quality) | None |
| String attachment | Clamp at rotating post | Clamp at the end of the tuning machine |
| String wraps on post | Minimal (half to one wrap) | None — no post |
| Break angle consistency | Varies with wraps and post height | Consistent |
Which Type of Guitar Tuner Is Right for You?
Locking tuners are a great choice if you want a straightforward upgrade from standard tuners with minimal change to your guitar’s setup and feel. They drop into most existing peghole configurations, they’re available from dozens of manufacturers in every finish and configuration, and they make string changes meaningfully faster. For most guitarists, locking tuners are a real and worthwhile improvement.
Gearless guitar tuners are the right choice if tuning precision is your priority. The 40:1 ratio, zero-backlash operation, and exceptionally smooth tuning action deliver a level of fine-tuning control that geared mechanisms cannot match. Players who spend time dialing in precise intonation, who use alternate tunings, or who simply want the most mechanically stable tuning system available will feel the difference immediately.
Gearless guitar tuners also eliminate string trees on Fender-style headstocks. Because the string exits the tuner body closer to the headstock plane than a standard post, the break angle over the nut is naturally steeper — no string tree needed to hold the string down.
Nut Setup Matters More Than Your Tuner Choice
Regardless of whether you choose locking tuners or gearless guitar tuners, your guitar’s nut is the single biggest factor in tuning stability. A nut with tight, rough, or poorly cut grooves will cause binding — and binding causes tuning problems that no tuner of any design can overcome.
This is especially important with gearless guitar tuners. The steeper break angle over the nut that gives gearless tuners their mechanical advantage also increases downward pressure on the nut grooves. A nut that worked fine with standard tuners may need attention when switching to gearless. For the dedicated step-by-step guide to testing and fixing nut slots, read Adjusting the Nut to Prevent String Breakage with Riot Tuners.
For a detailed explanation of how nut binding causes string breakage and how to fix it, read Why Gearless Locking Tuners Break Strings (And How to Fix It). For the full installation guide including nut preparation, read How to Set Up Your Guitar for Riot Gearless Locking Tuners. The PDF installation instructions are also on the Installation Instructions page. For detailed nut slot technique, see this guide on correctly fixing guitar string nut binding.
About Riot Works Gearless Locking Tuners
Riot Works manufactures gearless locking tuners in Oregon from marine-grade stainless steel with sealed stainless steel bearings and naval brass collars. The machined stainless finish is clean and elegant — precision you can see and feel. They fit standard 3/8″ pegholes, require no drilling or permanent modification to your headstock, and are backed by a lifetime warranty.
If you’ve been playing with locking tuners and want to experience what gearless precision feels like, visit the Riot Works shop or contact us with questions about your specific guitar.
For a detailed comparison between Riot Works tuners and Steinberger gearless tuners, read our Steinberger Replacement Tuners: Complete Buyer’s Guide. For a full upgrade path breakdown, see Best Tuning Machine Upgrade for Guitar Tuning Stability.