Biker is a a new WordPress theme, it is another child theme of Jolene. Biker is a theme not just for bikers, biker is cusmomizable theme: it has custom colors for link, headings, menus, widgets and sidebars, custom header, 2 custom backgrounds, 3 nav menus, slider and other options. Biker looks unusual due to transparency of elements, transparency can be changed too. This is a responsive theme. Translation ready and has Russian translation.
You can customize your website by replacing current black background by any other texture or image at Appearance >> Customize >> Background. Recommended background image size is [1366px X 1200 px].
Links to free Images from demo-sites: