The Yamaha SR400 is a classic single-cylinder roadster that Yamaha built from 1978 to 2021. Its air-cooled 399cc single and simple, elegant design made it a cult classic in Japan and around the world.
It kept a kickstarter throughout its life, and fuel injection arrived in 2010. Its timeless style and ease of customisation made it popular with café racer builders. Rivals include the Honda GB350 and Royal Enfield Bullet.
| Year | Photo | Engine | Power | Weight | Seat | Fields |
|---|---|---|---|---|---|---|
| 2019 | ![]() |
399 cc | 22.9 hp | 152 kg | 785 mm | 52 |
| 2018 | ![]() |
399 cc | 27 hp | 152 kg | 785 mm | 52 |
| 2017 | ![]() |
399 cc | 22.9 hp | 152 kg | 785 mm | 52 |
| 2016 | ![]() |
399 cc | 22.9 hp | 152 kg | 785 mm | 53 |
| 2015 | ![]() |
399 cc | 22.9 hp | 152 kg | 790 mm | 49 |
| 2014 | ![]() |
399 cc | 22.9 hp | 152 kg | 790 mm | 46 |
| 2013 | ![]() |
399 cc | 27 hp | 152 kg | 790 mm | 44 |
| 2012 | ![]() |
399 cc | 27 hp | 152 kg | 790 mm | 45 |
| 2011 | ![]() |
399 cc | 26 hp | 152 kg | 790 mm | 45 |
| 2010 | ![]() |
399 cc | 26 hp | 152 kg | 790 mm | 44 |
| 2007 | ![]() |
399 cc | 27 hp | 152 kg | 790 mm | 44 |
| 2006 | ![]() |
399 cc | 27 hp | 152 kg | 790 mm | 44 |
| 2005 | ![]() |
399 cc | 27 hp | 152 kg | 790 mm | 44 |
| 2004 | ![]() |
399 cc | 27 hp | 152 kg | 790 mm | 44 |
| 2003 | ![]() |
399 cc | 27 hp | 152 kg | 790 mm | 44 |
| 2002 | ![]() |
399 cc | 27 hp | 152 kg | 790 mm | 44 |