Roel van der Ven on his bike in Kreuzberg The cobble stone streets in Kreuzberg are not great for riding your bike. Source: https://www.instagram.com/p/JP0X8vylZWbImdKoRNrFqY_NkSEStkCkjUlig0/ By Roel Roel is a senior product manager at Spotify. He loves internet quirks, baking, running and tech. View all of Roel's posts.