This set of 4 in line right handed Gotoh GB640 Res-o-lite Pre CBS Fender Style Bass Tuners are in the Pre CBS Kluson style but with modern upgrades like non reverse tuning direction and a flat back plate.

The Res-o-lite tuners are made from 'duralumin' (a hardened aluminium alloy) resulting in tuners that are very lightweight for their large vintage size, great for upgrading basses that suffer from neck dive or reducing the overall weight on your shoulders when standing. The tuners will fit 50s and 60s era Precision Bass and 60s Jazz Bass guitars and modern reissue Jazz and P basses, these also have the vintage rivet attachment style of the cloverleaf button to the button shaft. The tuners feature a 1:28 gear ratio for tuning up accurately and four screws per tuner (included) fix it to the back of the headstock and the knurled push fit bushing secures the string post on the front of the headstock. The torque of the button can be adjusted to maintain the correct meshing between the gears over the lifetime of the tuners.