BM Rickenbacker®-style replacement bass machine head
Our well-known Rickenbacker style bass machine head with the iconic BM tuning knob featuring the characteristic 1950s cloverleaf shape. In the proven quality that we have been producing for the worldwide bass industry for decades.

Rickenbacker headstock configuration: 2+2 oder 3+2
- Single left tuner: for B, E or A string
- Single right tuner: for D or G string

Suitable for the following Rickenbacker basses
- 4001
- 4003
- 4003S
- 4003S/5
and other

Special features
- State of the art, highest precision, mounted with press in bushing.
- All parts are precision-crafted and surface-finished, the self-locking drive ensures an even, delicate and steady tuning.
- All string posts are made of high-grade brass and fitted into the housing with utmost precision, ensuring the best possible tuning accuracy and wear resistance.
- You can switch from right to left and vice versa by yourself. Please unscrew the screw from the worm gear, lift the worm gear, turn around the worm screw with the button, place the worm gear again and tighten the screw.

Technical specifications
-Gear ratio: 1:20
-Weight: 89 g each single tuner including press-in bushing

Scope of supply
- 1 x press in bushing, outside diameter for borehole 13mm
- 4 mounting screws: M2.2 x 9.5