The Surface 604 Quad takes the efficient and responsive 500W Surface 604 powertrain and slaps some bling on top for a premium electric off-road mountain #bike. The aluminum frame is finished with a simple clear coat that lets the unvarnished beauty of the buffed metal shine through. https://cleantechnica.com/2021/02/01/the-surface-604-quad-brings-the-bling-to-the-world-of-electric-mountain-bikes/














