 Sagene Ring had a length of in 1905, of which about half was double track.The Rodeløkka Line branched from KSS's Grünerløkka–Torshov Line at Nybrua and ran along Trondheimsveien to Helgesens gata.There it branched off and continued along Rathkes gate, Verksgata and Københavngata until it reached its terminus at the intersection with Dælenenggata.