The Coolerworx Bulb Shifter Knob is an original upgrade and replacement knob designed for compatible Coolerworx shifters with a threaded handle. Its rounded bulb-style shape is designed to sit naturally in the hand and provide a comfortable grip during gear changes.

The smooth, ergonomic profile makes the knob suitable for both everyday driving and more dynamic use, while retaining a clean motorsport-inspired appearance.

Important: before ordering, check that your Coolerworx shifter handle has a threaded end. Some early Coolerworx shifters were produced without a thread on the handle and are not compatible with this knob.

Key specifications:

• original Coolerworx shifter knob,
• Bulb version,
• rounded ergonomic shape,
• designed for a comfortable and secure grip,
• thread: M12x1.5,
• compatible only with threaded Coolerworx shifter handles.

Compatibility: Coolerworx shifters equipped with an M12x1.5 threaded handle.

Product variant: Bulb shift knob in copper.