The game was closer in the early stages than the eventual score suggests. But from leading 6-5 at the start of the third period, Solihull raced clear, with Ryan Padbury and Arthur Davies both claiming a couple of goals.
Cheltenham improved their prospects of Super 5s qualification with a 19-11 win against Bristol. Later, Bristol scored seven in the first period on the way to a 20-13 defeat of Invicta.