Gentlemen, stop your engines. And hop onto a new vehicle by BMW — the mountain bike. The famed automaker has just released the Q6.S and Q3.S, lightweight two-wheelers ideal for rugged, off-road terrain. The 27-speed Q6.S ($3,995) features the ultra-advanced Telelever suspension system (the same technology used on BMW motorbikes), which provides a smooth ride on the roughest roads and dramatically reduces the chance of wipeouts. The 24-speed Q3.S ($995) is well-suited for off-roading, too. But why stop there? You could use it for more urban adventures, like getting to work. (888) 269-6654,