Yamaha brings back the RX100 with a 2025 upgrade—retaining its vintage silhouette while packing a fuel-injected 125cc engine and modern tech like Bluetooth navigation and a digital-analog dash. But the real surprise? That unmistakable two-stroke-inspired exhaust note is back, louder and prouder than ever—let’s watch the video to see how this retro icon holds up on today’s roads.