The retired footballer was captured gripping the handlebars of his 93 Knucklehead bike on Wednesday (16 October), while taking the motor out for a spin.
The 38-year-old swapped the typical leather-clad look for a casual ensemble, wearing dark jeans, a black t-shirt and sturdy brown boots.
The dad of four, who also bared his tattoo sleeve, wore a black helmet for safety as he cruised the streets, and was seen adjusting it once he stopped at the lights.
Wearing no protective body gear apart from his helmet, David certainly looked like quite the thrill seeker!
David rocked black aviator shades to shield his eyes from the bright California sunlight and we reckon it must have been quite a sight for drivers to see him pull up beside them!
Although, it probably won't come as too much of a surprise, as David regularly takes his bike out for a spin when he returns to the city.