The ongoing impact of Euro5 has reached the Aprilia 125 lineup. The Italian manufacturer just announced a list of updates to its learner-friendly RX125 dual sport and SX125 supermoto.
Aprilia’s 125s are both built by Zongshen, in China, to keep the price low. They share the same basic chassis and engine, but the supermoto has 17-inch wheels front and rear and a 300 mm brake disc, while the dual sport version has a 21-inch front and 18-inch rear and a 260 mm brake disc. They’re aimed at the beginner bike market in the EU and UK, where horsepower limits and other restrictions make a 125 a sensible choice. Although they’re made in China, Aprilia positions these machines as higher-end bikes than the crop of cut-rate 125s that floods the Euro market. EFI comes standard, and Bosch-sourced ABS is also available.
The Aprilia 125 engine is actually originally a Derbi design, which comes under the Piaggio Group umbrella, same as Aprilia. It’s a liquid-cooled DOHC four-valve single, with 124 cc capacity. Previous versions of the four-stroke engine made around 15 horsepower at 10,500 rpm, and 8 pound-feet of torque at 8,250 rpm.
Torque is slightly down for 2021, but horsepower is unchanged for 2021, despite Aprilia’s tweaks to meet Euro5 regulations. Motorrad reports Aprilia had to design a new head for the engine, allowing for more efficient combustion. There’s a new catalytic converter, new muffler, and some changes to the intake and engine management systems.
The 125 series also gets a bodywork overhaul, for a fresh look. Supposedly, pricing in Europe is around the 3,990 euros mark, a slight hike over the previous year.