About The Offset Bridge
Problems with your current bridge? You’re not alone. Since its conception in 2008, the multi-patented M1 and M2 Mastery Bridge remains the industry leader and most trusted Offset bridge in the hands of touring musicians around the globe. Our original Offset bridge eliminates the buzzing associated with previous saddle designs. Your strings won’t fall out of their grooves — no matter how hard you play. All of our Offset bridge saddles are made of solid brass. Since solid brass can begin to show wear within hours of vibrato use, we plate them with a unique, self-lubricating hard chrome plating not found on any other guitar bridge.
The patented non-rocking post design along with Mastery’s patented two saddle design has a dramatic effect on the transfer of string-to-body energy, giving your guitar much greater resonance that you’ll even hear acoustically. AND THAT’S JUST THE START. Check out our specs page to learn more, and see why veteran guitarists such as Nels Cline & Jeff Tweedy of Wilco, Elvis Costello, Troy Van Leeuwen, Bill Frisell, Thurston Moore & Lee Ranaldo of Sonic Youth, as well as thousands of others are now using the Mastery Bridge.
For detailed information on how our bridge works, please visit our Specs page.
All of our products are luthier-designed and precision machined of the highest quality, non-corrosive materials in Minneapolis, MN.
Not sure if this is the right bridge for you?
Check out our guide.
Mastery Bridge Testimonials
“Simply put, the Mastery Bridge is one of the most brilliantly conceived practical enhancements ever made for the electric guitar.”
“An excellent innovation that preserves the unique tone of the guitar – the best option is Mastery Bridge.”
Fretboard Journal Magazine
“The Mastery Bridge is the answer to my prayers.”
After decades of trying everything, the Mastery Bridge is the solution we’ve been looking for.”
Thurston Moore & Lee Ranaldo, Sonic Youth
Offset Bridge Specs
Our luthier designed and multi-patent issued bridges are crafted and assembled in Minneapolis, MN, using the finest materials available. Each individual bridge is inspected and tested before being shipped to you, to ensure the best possible performance. Every part of our bridge is precision machined out of the highest quality, non-corrosive materials to protect against any rust. Because we are currently such a small shop, the Mastery Bridge is only available through this website and is not available through any other online retailer in the USA. Please look over the descriptions of the various parts that go into the Mastery Bridge below.
The Mastery Bridge features a unique, patent issued two saddle design not found on any previous guitar bridge. On the 52mm string spacing from E to E, four intonation-adjustment screws are used instead of six, allowing the string to freely go from the saddle to the vibrato without any chance of interference from the front of an intonation screw or back of a baseplate. Each saddle features two drop-in swivels, permitting each of the individual intonation adjustment screws to work independently for precise intonation. The deep saddle string grooves ensure that your strings will never “pop-out” during performance and are slightly fanned out on each end. Instead of around 18 lbs. of string tension bearing down on an individual saddle as found on most bridges, our bridge applies over 50 lbs. of downward string tension on each saddle. This added tension per saddle forced downward transfers more string-to-body energy, which you’ll hear in your guitar acoustically as well as amplified. The saddles accommodate the heavy-gauge strings of Bass VI model guitars and can be used on left-handed guitars as easily as right-handed.
The Mastery Bridge features precisely curved adjustable saddles that allow you to effortlessly set-up to any common fingerboard radius, from 7.25″ onward. Although guitar manufacturers will CNC radius fingerboards to certain specs, it’s the top of the fret that matters and should be measured, and that can change/vary overtime due to slight unevenness and eventual playing wear. Different climactic conditions can move the wood of your neck and not the frets, and depending on how malleable your fretwire is it will move or not move with it, causing slight unevenness. Varying string thickness will also affect the top of the string radius; depending on the thickness of your strings you’ll want to adjust to them accordingly. Heavy-handed players also like our adjustable saddle design because they can easily raise the bass side of the strings slightly for hard-hitting. The saddles eliminate annoying “buzzing” or rattle associated with previous single saddle bridge designs. Adjustable radius bridge saddles like ours are important for slight tweaking on first install and in the long run.
Our patented two saddle design features two drop-in stainless steel swivels in each saddle, allowing each intonation adjustment screw to work independently from each other. We use a patented self-locking screw design for the socket head intonation screws that go into the swivels. Our four intonation screw design allows the strings to go freely from the saddle to the vibrato without any chance of interference from the front and back of an intonation screw or the back of a baseplate and makes intonation adjustments easy while the strings are up to tension.
Hard Chrome Plated Saddles
Plain brass, plain steel and plain stainless steel saddles eventually wear grooves into the saddle with vibrato use, which can cause muted tones and string breakage. Plain brass is the softest of these materials and can begin to wear within hours of vibrato use. The more surface area there is in a saddle groove, the more problems can arise later on. A steel string on an unfinished saddle naturally generates heat with heavy vibrato use, and that heat will expand the metal in your string and cause it to go out of tune. We use brass for our saddles, a softer, warmer-sounding metal, but plate them with a unique hard chrome plating not found on any other guitar bridge.
Hard chrome plating is commonly used to reduce friction and heat, along with increased wear resistance in parts like piston rings, firearms, airplane landing gear and bearing surfaces. It generates far less heat with vibrato use and your strings stay better in tune. Although much more expensive to manufacture than plain or “decorative chrome” saddles found on other bridges, our saddles’ unique hard chrome-plating aids in lubricity while tuning or actuating the vibrato of an Offset or Bigsby-equipped guitar, ensuring years of consistent performance and accuracy. No other bridge manufacturer uses plating this durable. Our saddles will remain the hardest surface on your guitar.
Offset Mounting Posts
Unlike the floating design found on all other offset-style bridges on the market, where the only metal-to-metal contact between the bridge and the body is on the bottom tip of two mounting post adjustment screws, the patented mounting post design of the Mastery Bridge fits snugly into the diameter of vintage and modern Fender-style thimbles, creating full contact between the bridge/thimble/body. This ensures your bridge will not change position during performance and remain stable during string changes without any chance of misalignment. Along with our unique saddle design, this feature also has a dramatic effect on the transfer of string-to-body energy, giving your guitar much greater resonance you’ll even hear acoustically.
Since the installation of the stock body thimbles can slightly vary from guitar-to-guitar, we’ve made our posts adjustable and removable via a vented 6-32 button head screw. The patented head screw contains a hole (the “vent”), allowing internal access to the adjustable bass/treble height screws. Like all other parts of the Mastery Bridge, the posts and screws are stainless and will not corrode.
Our patented designed baseplate is CNC water-cut from a solid, 304 stainless non-ferrous steel sheet. We then tumble them in a coarse media to de-burr and break any sharp edges. The plate edges are then buffed on a wheel and hand straight-line sanded. After bending them to the specified profile, our logo and batch numbers are laser printed into the metal. Our patented baseplate and saddle design prevents the string from making contact with the back end of the baseplate and front and back of the intonation screw on Offset and Bigsby equipped guitars.
Our M1 Mastery Bridge fits all new, used and vintage American made Fender guitars. Our M2 Mastery Bridge is the same bridge as our M1, but comes with an additional set of larger mounting posts required for most Japanese made guitars. Our M1 Offset mounting posts fit USA spec thimbles that have a .310″ inside diameter. Our M2 Offset mounting posts fit MIJ spec thimbles that have a .315″ inside diameter. If you’re unsure which Offset bridge you need, click HERE.