| Honda NSF250R | |
| Manufacturer: | Honda Racing Corporation |
| Production: | 2012–present |
| Predecessor: | RS125R |
| Successor: | NSF250RW |
| Engine: | 249.3cc four-stroke single-cylinder |
| Bore Stroke: | 78mm52.2mm |
| Power: | 47hp @ 13,000 rpm |
| Transmission: | 6-speed, constant mesh, cassette style |
| Wheelbase: | 1219 mm |
| Length: | 1809 mm |
| Width: | 560 mm |
| Dry Weight: | 84kg |
| Fuel Capacity: | 11 liters |
| Related: | Honda NSF100 |
The Honda NSF250R[1] is a four-stroke race motorcycle from HRC (Honda Racing Corporation) developed in 2011 to replace the Honda RS125R, a two-stroke. Honda's NSF250R joined the newly created Moto3 World Championship in 2012. An updated model, the NSF250RW was introduced in 2014, and won the constructors' title for the first time in 2015. The motorcycle is one of the most successful machines of the Moto3 era to date, having taken five constructors' championships and five different riders' to their respective championships.
| Overall length × Overall width × Overall height | 1809×560×1037 mm | |
| Wheelbase | 1219 mm | |
| Seat height | 729 mm | |
| Caster angle | 22°36" | |
| Curb weight | 84 kg | |
| Fuel tank capacity | 11 litres | |
| Engine type | liquid-cooled 4-stroke DOHC single cylinder | |
| Maximum power | 35.5 kW (47.6 hp) @ 13,000 rpm | |
| Maximum torque | 28 N.m. (20.7 lb-ft) @ 10,500 rpm[2] | |
| Transmission | 6-speed, constant mesh, final chain drive |
| 2012 | 87 | 5th | |
| 2013 | 0 | NC | |
| 2014 | 384 | 2nd | |
| 2015 | 411 | 1st | |
| 2016 | 350 | 2nd | |
| 2017 | 445 | 1st | |
| 2018 | 401 | 1st | |
| 2019 | 439 | 1st | |
| 2020 | 326 | 1st | |
| 2021 | 360 | 2nd | |
| 2022 | 330 | 2nd | |
| 2023 | 327 | 2nd |