Custom Dynamics Taillight Base Plate - '25 M8 Softail

A direct replacement taillight baseplate that deletes the factory rear turn signals and leaves your Harley-Davidson Softail with a clean, uninterrupted tail.

The factory baseplate carries the OEM rear turn signals out on stalks. This one does not. Custom Dynamics molded it from durable ABS plastic in black with the same OEM style shape, so it sits in the stock location and looks like it belongs, while the back of the bike loses the signal arms entirely.

It is built to pair with an integrated taillight. Custom Dynamics designed this baseplate specifically for their own and ProBEAM integrated taillights, which fold brake, run and turn signal into one clean unit. Metal threaded inserts are molded in so the taillight fastens to metal rather than threading into plastic.

Read this before you order. Custom Dynamics states that an alternative rear turn signal must be installed on the motorcycle. Removing the OEM rear turn signals without one can trigger fault codes. On FXLRST Low Rider ST models the OEM rear turn signals must be removed for installation, and an additional taillight wire harness may be required.

Fitment

• 2025 FLHCS Heritage Classic
• 2025 FXLRS Low Rider S
• 2025 FXLRST Low Rider ST

Specs

• Material: molded ABS plastic, black finish
• Mounting: metal threaded inserts for the taillight
• Style: OEM style baseplate shape, direct replacement
• Deletes the factory rear turn signals

Works With

• ProBEAM Integrated Low Profile LED Taillights with Turn Signals, the integrated taillight this baseplate is shaped to carry.
• Integrated Taillight Adapters, the wire harness Custom Dynamics lists as a possible requirement on Low Rider ST models.