I have an MRA screen with the small adjustable spoiler fitted to my Africa Twin - it is superb - Visor up at 70mph easy - expensive but worth it. They now sell just the spoiler bit.
2000 Black and Gold with MRA Screen, Motad Venon Exhaust + Custom Stainless Ankle Guard, Bagster Tank Cover, Dash Clock Cover + 12V, Facet Fuel Pump, Givi Crash Bars, Givi Pannier Rack (Modified for Stahlkoffers), Givi Top Box, Stahlkoffer Panniers, Pro. Mod. Seat, CR Footpegs, Michelin Anakee 2 Tyres, Sat Nav., Hel Stainless Brake Hoses, K&N, Headlamp Mesh - oh! yes. Huge Nut attached to Handle Bars