Silver Streak is a bus rapid transit route between Montclair and Los Angeles operated by Foothill Transit. Between the Montclair TransCenter and the El Monte Bus Station, buses travel on the San Bernardino Freeway. Between El Monte and Downtown Los Angeles, buses use the El Monte Busway. The service was introduced in 2007 in response to overcrowding on Foothill Transit route 480. It runs 24 hours a day, with hourly service in the late evening.

Montclair is a city in the Pomona Valley, in southwestern San Bernardino County, California, 35 miles (56 km) east of downtown Los Angeles. The population was 37,865 in the 2020 United States Census.