While we do not have a trailer hitch for your 2020 Harley Davidson TriGlide I can help you with all the wiring you will need. We only have universal wiring so you would first need a 4-Way # C59236 which you would then use the 6-Way Upgrade # ETBC6 since you are adding a Brake Controller # RED52VR. The 6-way round is generally the type of connector for motorcycle trailers using brakes as they do not require the reverse circuit wiring. view full answer...