If you are a fingerstyle player with a Rickenbacker 4001, you know there is no really good place to"hang your thumb" - You see many Rics with a wear spot at the corner of the pickguard, where players try to"dig in", and many Rics with the chrome cover removed from the bridge pickup to allow finger style access.I designed this for my own 4001 as I wanted to make it more comfortable to play and keep the "cover on" as the classic look that is a big part of this bass for many Ric fans.
This thumb rest is made out of 1/4" thick high quality dead clear polycarbonate,and precision CNC made in a machine shop here in the USA.The position and design mean NO NEW HOLES in your bass! Includes two Fender-style pick guard screws which are somewhat longer than the stock Ric screws,so you do not even change the screw holes by adding this on.
The 4001 model, fits the 1975 and onward bass -As a rule not for 1974 - and earlier. The transition went across the model years -1975 through 1978 - so you need to measure. Please check your neck pickup - if it is about an inch from the fingerboard, the 4001 unit'should fit. If your 4001 has the neck pickup close (about 1/2 inch) from the fingerboard - This will likely not fit!