The Honda CBR125R was a single-cylinder sports motorcycle made by Honda that was part of the CBR series and first hit the market in 2004 to fill the gap left by the discontinued NSR125. The bike was manufactured in Thailand by A.P. Honda alongside the similarly designed CBR150R targeted for the Far East market.
The bike featured a twin-spar steel frame with a 31 mm telescopic fork on the front and a direct monoshock on the rear that provided optimum suspension, while the braking performance was handled by a 276 mm disc with a two-piston caliper on the front wheel and a 220 mm disc squeezed by a single-piston caliper on the rear wheel.
All the models manufactured from 2004 to 2006 were similar to the CBR600F4i and fed by a carburetor. Also, in 2005, Honda introduced the Repsol color scheme that was only available on the CBR125RS5/6 motorcycle.
In the performance department, the 2004 Honda CBR125R featured the smallest displacement engine in the CBR series, with a 124cc four-stroke single-cylinder liquid-cooled powerplant that delivered an output power of 14 hp with a peak at 10,000 rpm and 11 Nm (8 lb-ft) of torque available at 8,250 rpm.
All the power generated by the engine, combined with a dry weight of 127 kg (280 lbs) and a six-speed manual transmission, resulted in a top speed of 113 kph (70 mph).