From Fender:
There’s no denying the allure of a roasted maple neck. Resistant to humidity shifts and featuring a gorgeous, dark look, they have more sustain and add a unique note to the instrument’s voice.
This genuine Fender Jazz Bass neck is crafted at our Ensenada, Mexico manufacturing facility. Featuring a comfortable “Modern C”-shaped profile and 9.5″-radius maple fingerboard with 20 medium-jumbo frets, this neck was designed for pure playability. The synthetic bone nut is pre-slotted with “pilot” grooves for accurate spacing when filing the final string slots. The perfect way to give your J Bass® authentic Fender feel, this replacement neck even sports our famous “spaghetti” logo on the headstock.