… … Silver Streak to the J Line (Metro Silver) Silver Streak to the J Line (Metro Silver) Combined service from Foothill Transit and Metro makes it easy for you to pick a bus – any bus. If you ride Foothill Transit’s  Silver Streak  or Metro’s J Line (Silver) between El Monte Station and downtown LA, you have options! Silver … shows how Foothill Transit’s Silver Streak and Metro’s J Line (Silver) combine to create one of the longest and fastest lines in the county.    …