The Honda CBR125R was a single-cylinder sports motorcycle made by Honda, part of the CBR series, first introduced 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.
In 2007, the bike came with a major revision that included different front fairings that resembled the look of the CBR600RR and a black-finished swingarm and front fork. Also, the bike featured some changes in the engine department, such as a PGM-FI fuel injection system, an Idle Air Control Valve (IACV) that worked alongside the fuel injection system, and a HECS3 oxygen sensor that complied with EURO3 emission standards.
The 2011 model came with a massive update that included new bodywork, which gave it a big bike look with enhanced weather protection and overall rider comfort.
The bike featured a narrow pentagonal-section twin-spar steel frame and a box-section swingarm that reduced unwanted flex for better control with a 31 mm telescopic fork on the front and a direct monoshock on the rear end that offered optimum suspension performance.
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.