The second Honda RS125 that's been up for sale in the past couple weeks, this looks like a more bare-bones offering than the last one we featured, although it still appears to be in decent shape. If you're not familiar with the RS125, it's no "race replica": it's an over-the-counter competition machine meant for racing, not a stripped-down roadbike. Weighing in at 160lbs with a half-tank of fuel, it is powered by a very slightly undersquare 124.4cc two-stroke single that is backed by a six-speed gearbox.
These tiny two-strokes aren't for novices: the high-strung little engine makes a stunning 40+hp and that kind of power-to-weight means regular rebuilds, and shepherding the power from that tiny engine requires constant tuning and gearing changes to suit different altitudes, conditions, and tracks. It helps that the competition design means they're relatively simple to work on, but these are serious Grand Prix motorcycles, and potentially a stepping stone to bigger, faster bikes and more prestigious classes.
From the original eBay listing: 1990 Honda RS125 for Sale
Very rare Honda GP racer RS125, 125cc two-stroke single.
Very nice original condition.
1990 model legal to Vintage class racing.
Please see pictures for more detail.
Any questions please ask.
Will ship worldwide.
There's not much bidding activity so far and no Buy It Now price is listed, so perhaps this bike just hasn't found its audience yet, or maybe folks are looking for listings with more detailed descriptions? Is it the lack of extras? Spares for these little race bikes are very desirable, owing to the fact that they can be a pain to acquire and will be regularly needed if you plan to keep one running: 125s are often associated with cheap, reliable transportation, but the RS125 is a racing machine, and will require regular tuning and maintenance if the new owner intends to use the bike for its intended purpose.