Regularly seen in racing livery and worn around the edges from track use, here is a mint example in factory paint with just 637 miles. Built to accompany the RSV1000R to the showroom, the RS125 is a lightweight but surprisingly accommodating to an adult rider.
The RS125 was heavily revised in 2006 and styled in admiration of its big brother. The twin-spar alloy frame is lightly polished and coated to stay nice, as is the banana swingarm. The 28 hp Rotax-based single is very advanced, liquid cooled with a counter-balance shaft and Nikasil coated aluminum cylinder. Seventeen-inch wheels and upside-down forks aspire to a larger machine. Brakes are big 4-piston Brembo but singular of course. Wind-cheating bodywork is occupied by the angular corporate lion.
A SoCal native, this RS hasn't much history, apparently quite stock and without damage. From the eBay auction:
2006 Aprilia RS125 two stroke bike has a clear California title. Registration is valid till October of 2018. This bike is factory stock except for Arrow full exhaust system that make it sound unique. Bike is in great condition with very low mileage.
A bit of Dr. Jekyll as a starter bike in progressive licensing countries, and Mr. Hyde when a gateway racing motorcycle, the RS125 can take you there. Pricing by cc was outlandish when new, and a decade later the ask is more than a lot of new singles. But then this is undeniably sporty, one of the last road going two-strokes ever, built using Aprilia's long knowledge of the lightweight classes.