Need help identifying which “Tension Roller” Bigsby you have? There are 2 types.

If your tension roller is held in place by a 1/8″ axle with a hex set screw underneath the Bigsby, then you have either a Bigsby B5, B7 or B12

If your tension roller is held in place by a 1/4″ axle with circlips on each end, then you have either a Bigsby B50, B70 or B700

BTS 5712 2.0 for Chrome
BTS 5712 2.0 for Gold
BTS V3 for Chrome
BTS V3 for Gold

If your Bigsby is mounted on a Vibramate adapter, you will find that since the adapter already raises the roller (but not quite enough) you will want a Biggsfix that provides just a little less relief than the BTS 5712 2.0. The BTS 5712 VM has 1.5mm less relief and is perfect for Bigsbys mounted on Vibramates.

BTS 5712 VM for Chrome
BTS 5712 VM for Gold