The San Diego County Sheriff’s Office’s — perhaps first — high-speed electric bike chase ended with an arrest and the rider facing serious charges. Investigators said the 19-year-old on the electric dirt bike not only fled law enforcement but also rammed a sheriff’s deputy. A half-dozen San Diego sheriff’s patrol cars chased 19-year-old Hunter Bellish from Vista to Oceanside on Tuesday afternoon. Deputies said he was riding at speeds of more than 50 miles per hour. “Now we a...