Opens in a new window
Grover 502 Series Roto-Grip Locking Rotomatics, Kidney Button - Nickel
4 models to choose from:
The 502 Series utilize the famous Rotomatic® design with a "thumb screw" mechanism which locks the string into place, allowing for quick string changes. To operate, insert the string through the post hole, wrap around once, then lock by tightening with the thumb screw.
- 18:1 gear ratio
- 25/64" post hole
- Post length to hole: 23mm
- Overall post length: 28.2mm
- Weight per pc/per set: 1.6oz/9.6oz
- Max. string gauge: .074"
- Hardware included (bushings, washers, screws)
Drop-in replacement for
- 102-18 Series
- 102V Series
- 103 Series
- 106 Series
- 109 Series
- 109-18 Series
- 135 Series (Top mounting hole will be visible)
- 136 Series (Top mounting hole will be visible)
- 502 Series
- 509 Series
Specifications
- Sealed-in, lubricated gears- 18:1 gear ratio
- 25/64" post hole
- Post length to hole: 23mm
- Overall post length: 28.2mm
- Weight per pc/per set: 1.6oz/9.6oz
- Max. string gauge: .074"
- Hardware included (bushings, washers, screws)
Drop-in replacement for
- 102-18 Series
- 102V Series
- 103 Series
- 106 Series
- 109 Series
- 109-18 Series
- 135 Series (Top mounting hole will be visible)
- 136 Series (Top mounting hole will be visible)
- 502 Series
- 509 Series
Q & A
There are currently no questions for this product.
Reviews
18.119.133.138
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Easy drop-in replacement for a Gibson les Paul Classic 2018 2 of 2 customers found this review helpful
Features
Quality
Value
Overall
Product Experience I own it
Closest Store Montréal, Quebec
I installed these in my LP in about 15 minutes. These seem to be the same Grover quality that was installed by Gibson in my non-locking LP. The post diameter is manufactured for a 10mm diameter hole and the alignment screw lines up perfectly and screws are same threading. The post length is a little shorter than the originals that were supplied by Gibson, probably because they don't provide the extra length for string windings.
If you don't have a sound stringing technique, your strings might not stay in tune well, especially if you use a tremolo (Bigsby, etc). Locking tuners will help. If you have a good stringing technique, your strings already stay in tune, but locking tuners are easier and faster - just a better way to do things.
Posted by Ray on Dec 7, 2020
Great Tuners Bad Set 0 of 0 customers found this review helpful
Features
Quality
Value
Overall
Product Experience I own it
Closest Store Oshawa, Ontario
I really like these tuners they work great however, one of them was broken right out of the package. Seems like Grover doesn't have the greatest quality control for these.Also i had to wait two months for Grover to ship the item.
Posted by Phil on Jan 3, 2014
Nice units 0 of 0 customers found this review helpful
Features
Quality
Value
Overall
Product Experience I own it
Closest Store Toronto (Bloor St.), Ontario
Smooth,accurate,zero backlash.Extremely well built,attractive.These have got to be the machine heads on the market bar none.I will be installing them on my other 4 guitars soon.
Posted by Bugsy B on Nov 26, 2012
smooth tuners 0 of 0 customers found this review helpful
Features
Quality
Value
Overall
Product Experience I own it
Closest Store Abbotsford, British Columbia
Smooth as butter and exceptionally well crafted. These tuners are a guitarists dream come true. Simple to change and lock down a string - seemingly effortless tuning ability. Highly recommend these if you are planning to swap out your keys.
Posted by PDE on Feb 10, 2012
Great Additions
Reserve in Store
| Product | SKU | Qty |
|---|---|---|
| 502 Series Roto-Grip Locking Rotomatics, Kidney Button - Nickel | 756855 |
