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Grover 144BC Mini Bass Tuning Machines Set - 2+2 - Black Chrome

Mini Tuning Machine Heads for Bass with 20:1 Gear Ratio, 2x2 Configuration, .547" Hole Size, and Included Mounting Hardware - Black Chrome
15 Write review Item ID: 144BC
$96.99

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Grover 144BC Mini Bass Tuning Machines Set - 2+2 - Black Chrome
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Precise Mini Tuning Machines For Your Bass

Choose Grover Mini bass tuners for exceptional tuning stability and long-term reliability. Grover Mini tuning machines feature a precise 20:1 ratio for smooth performance, and sealed-in lubrication will keep these tuners primed for a lifetime. These tuners are an ideal replacement for virtually any modern bass guitar, and come with all necessary mounting hardware. For stable tuning that you can rely on, get some Grover Mini bass tuners!

Grover Mini Tuning Machines for Electric Bass Guitar Features:
  • Mini tuning machines for bass guitars
  • Color: Black Chrome
  • Mini size is perfect for smaller headstocks, or simply for a lighter feel
  • 20:1 gear ratio
  • .547" hole size
  • 2 x 2 configuration
Enjoy world-class tuning stability with the Grover Mini bass tuning machines!

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Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

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  • Get back to making music with the industry's fastest turnaround time
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Tech Specs

  • Intended Instrument: Bass
  • Configuration: 2+2
  • Finish: Black Chrome
  • Gear Ratio: 20:1
  • Peg Diameter: 0.547" (peg hole)
  • Manufacturer Part Number: 144BC

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Customer Reviews

4.9 out of 5

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Love 'Em!

Built a custom short scale and used the Grover 144BC mini's. It has been many months now and other than the initial install and one other tuning to account for string stretch, these tuners have held tune amazingly well. I play daily and always check my tuning, rare minor adjustments at most. I couldn't love these more!
by Jesse Chaput from Raleigh, NC on
Music background: Used to play some bass... getting back into it... building custom axes as a hobby

Bass, Precise Tuning Machines. December 2019!

Bought these Grover minis blacks, through Sweetwater. Needless to say, an awesome deal and product. Put these on my Hofner Bass to replace stock plastic machines. Wow, they dial you right in and hold tune. When you are gigging, you need to get through a set on the gig without re-tuning. These are the ones. Grover means quality.
The bit needed to drill holes is 35/64
This is a tough bit to find, NOT standard. I used a smaller bit and a file to get the holes to size. You can order 35/64 bit on line. Reccomend you do. According to Grover tech support, this will bore exact fit.
Hardware and screws are heavy duty and made well.
Sweetwater had my order here two days ahead of schedule. Thanks Michael Duncan @ Sweetwater...rock n rollin the deals ! 100 % to the Yes !!
by K Carr from SC on
Music background: Club Player, Cruise Ship Musician

Direct replacement for Ibanez Mikro bass

Bought an inexpensive Ibanez Mikro bass to try to get back into the fretted world. Bass came with all chrome hardware which I wanted to switch out to black. The stock chrome tuners had a coarse gear ratio which made tuning very quick but you could really feel the gears grinding. I thought the Grovers would be a higher/nicer gear ratio but they pretty much feel the same as the stock tuners. The Grovers were a breeze to install and required no modifications to the bass.
by Randy Chow from LONG BEACH, CA on

Perfect fit!

They were ordered as replacement tuning machines for my Yamaha TRB 1004. They were a perfect fit, look great and perform their job flawlessly. 10/10 - would recommend!
by Pat from Philly Suburbs on
Music background: Pro Bassist

New tuning machines

Perfect fit to replace the aging tuners on a flying-V bass; quick install for an improved fresh look and upgraded function.
by Sweetwater Customer on
See also: Machines, Grover, Grover Tuning Machine Heads
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