brown
Solid Rosewood, Slotted
Our classic. Reverse-belly profile, 2″ string spacing, .125″ saddle slot. Sanded to 600 grit and polished.
$119.97 free shipping
Replacement bridges for 1960s B-25 style flat-tops
Your B-25 isn’t finished.
It’s waiting on a bridge.
Solid rosewood and ebony reverse-belly bridges that replace the cracked, lifting 1960s plastic adjustable bridge, so the guitar in the closet can be played again.
- Rosewood from $119.97 · ebony $139.97
- Free shipping
- Slotted (.125″) or no-slot
- Hundreds of Initial Sound bridges sold on Reverb and eBay
Reviews
What buyers say
Quoted verbatim from Initial Sound buyer feedback on Reverb.
★★★★★
“Beautiful wood grain with a beautiful polish/sheen. I ordered an acoustic guitar bridge and received a work of art.”
★★★★★
“Absolutely beautiful bridge, and a perfect replacement (and upgrade!) to a vintage B25. Much appreciated!”
★★★★★
“I couldn't have found a better vendor. Excellent build time, fit, finish and quality. I will be doing more business.”
★★★★★
“Works great, this is, I think the third one I've purchased over a period of time, nice work and certainly a time save over making them one at a time.”
★★★★★
“Nice bridge and good dimensions for replacement.”
★★★★★
“Fantastic seller! Highly recommended. High Quality product. Excellent communications! Very fast shipping. AAA+++”
The problem
The real competitor is the closet.
In the 1960s, a number of well-loved small Kalamazoo-built flat-tops left the factory with an injection-molded plastic adjustable bridge. Decades later, many of those bridges have cracked, warped or lifted, and a lot of good guitars went into the case and stayed there.
A from-scratch custom replica is often quoted at hundreds of dollars before installation. Initial Sound is the shortcut: a ready-to-fit solid wood replacement bridge for $119.97.
Rosewood, ebony and more
Choose your bridge
One card per version, each with its own listing.
brown
Solid Rosewood, No Slot
No saddle slot, for luthiers who want to set their own intonation. 2″ string spacing.
$119.97 free shipping
black
Solid Ebony
Deep black, dense and refined. Same reverse-belly profile, 2″ string spacing. Sanded to 600 grit and polished.
$139.97 free shipping
wing-shaped
Dove-Style Rosewood
A wing-shaped replacement bridge for Dove-style guitars, in polished rosewood.
$139.97 free shipping
2.0625″ pin spacing
Rosewood, 2.0625″ Pin Spacing
For late-1960s J-45 / J-50 style flat-tops with 2-1/16″ pin spacing. Measure or message us to confirm fit. .125″ saddle slot.
$119.97 free shipping
Measured, not guessed
Bridge dimensions
Our standard rosewood replacement bridge, in inches. Compare with your original before you order.
Designed with luthiers
Covers the original footprint, cleanly.
- Pin pattern lines up with the original bridge.
- Perimeter oversized 1/16″ all around.
- Back extended a total of 1/8″ behind the pin holes.
The result covers the old footprint cleanly and is a more substantial bridge. Michael is a machinist, and he developed it with input from many luthiers.
Bench specs
- Replacement for
- 1960s B-25 style flat-tops
- Replaces
- Original 1960s plastic adjustable bridge
- Style
- Reverse belly
- String spacing
- 2″ E to e
- Saddle slot
- .125″ wide, or unslotted
- Pin spacing
- 2″ standard; 2.0625″ version available
- Woods
- Solid rosewood · solid ebony
How they’re made
Every bridge cut to the same profile.
Precision fixtures and a repeatable CNC program mean the bridge you receive matches the one before it: the same footprint, the same reverse-belly profile, the same 2″ string spacing. Then each one is finished by hand.
Fit certainty
Not sure it fits? Ask first.
Our bridge is a replacement for 1960s B-25 style flat-tops. Every vintage guitar is a little different, and we strongly recommend a qualified luthier handle the install. Send a photo of your old bridge next to a ruler, tell us the model and year, and we’ll give you a straight answer before you buy.
Our mission
From closet to campfire.
Guitars are meant to be played. We make bridges so the ones sitting in closets come back to life, and people make music again.
Read our storyBring it back to life.
Rosewood from $119.97, ebony $139.97. Free shipping.