It isn't a great ref . I quote from it in one or the other talk page, it only mentions load transfer. Gillespie uses the term weight transfer like normal people do, to mean load transfer. To my mind the whole weight transfer (as it is currently written) section is undue weight on an effect that very few people think about, it would be better to combine the two articles into one, describe load transfer while calling it weight transfer  and observing that load transfer is a better term, and then add a second section pointing out that for motorcycles and half empty milk tanker cg shifts are important.