This custom 6.58” speaker kit has been designed for the Vanderhall 3-wheel Roadster. Spec'd at 2 ohms impedance and 200 watts maximum input (130w RMS - 91db sensitivity), these speakers provide excellent on-highway performance. Speaker drivers feature lightweight waterproof woven-fiber cones with super-rigid metal basket and a high-density lite-weight Neodymium magnet structure with integral high-output PEI tweeters. Mounting hole pattern and spade electrical connections are exactly the same as the factory specification, this is a total plug-and-play no-modification solution complete with easy to follow installation instructions.