Description Reviews Craven Speed Shift Knob Cap - Change It Up! Craven Speed designed their shift knobs to include a modular top cap, which means it's incredibly easy to change up colors. You can choose a premade design in different colors as shown. The knob caps are machined in Oregon from 6061 aluminum or stainless steel. Part #: Brown DLT-AA112 Red DLT-AA118 Stainless Steel DLT-AB297 Green DLT-AB300 White DLT-AB303 Blue DLT-AB462 Red Anodized DLT-AC048 Black