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At Bunker we believe that the neck is the backbone of a really
great guitar or bass. Because of this, we will not build our instruments
with anything less than a Tension Free Neck™.
These necks use a 3/8" cold rolled steel bar to support the strings at
the headstock, thus removing all string tension stress from the neck,
leaving the neck free to resonate as it should.
This technological advantage eliminates dead spots, and provides much
quicker response to the notes you play.
All Tension Free Necks carry a
LIFETIME WARRANTY!
 With
a conventional guitar neck truss rod, the neck is actually compressed
between points A and C. This, along with the string tension, kills the
necks resonance at point B.
On a Tension Free Neck™, which is separated at B from the
headstock, all of the stress is on the cold-rolled steel rod between A and
C. The pin through the neck at point F secures the neck and fingerboard,
leaving the stress on the steel rod at point C.
On the back of each neck, at D (on the heal), there is an access hole
where you can adjust the neck to forward or back bow.
These necks can be retrofit to any guitar or bass.
It's best to call or email for pricing, but the average Tension Free
Neck for a guitar is $250.00, and for a 4 string bass $285.00. We also do
retrofit at the factory which averages $300.00 per neck.
All Retrofit Tension Free™ Necks carry a LIFETIME WARRANTY!
If you're looking for something really great to improve your current
Guitar or Bass, THIS IS IT!
Dave Bunker tells how Tension Free™ began
When I was building and designing my first guitar in the mid 1950's, I
worked for Boeing Airplane Co. as a production controller.
This job put me close to some of the finest engineers in the world. At one
of our holiday parties I brought up some of the problems I had found with
the conventional type truss rod with a group of structural engineers. These
fine people decided help with the long-standing problems inherent to the
old truss rod design.
In their off-hours these engineers, working on the Bomark Missile Project
at the time, helped me design what would become the "Tension
Free" Neck.
And that is how the Tension Free Neck™ was born.
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