# EPA Documents Reveal 2013 Ninja 300, 400R, Confirms 636cc Ninja ZX-6R

**URL:** <https://forums.speedlife.net/t/epa-documents-reveal-2013-ninja-300-400r-confirms-636cc-ninja-zx-6r/264869>\
**Category:** Shift518 Automotive\
**Created:** [August 27, 2012, 9:33am UTC](https://forums.speedlife.net/t/epa-documents-reveal-2013-ninja-300-400r-confirms-636cc-ninja-zx-6r/264869 "2012-08-27T09:33:42Z")\
**Posts on this page:** 1\
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**Author:** ![RocketPunch](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rocketpunch/32/6429_2.png) [@RocketPunch](https://forums.speedlife.net/u/RocketPunch)\
**Post date:** [August 27, 2012, 9:53am UTC](https://forums.speedlife.net/t/epa-documents-reveal-2013-ninja-300-400r-confirms-636cc-ninja-zx-6r/264869/4 "2012-08-27T09:53:35Z")

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> [@It's been a good week for the land yacht](https://forums.speedlife.net/t/its-been-a-good-week-for-the-land-yacht/50607/8):
>
> that’s weird. so how is the zx-6r going to meet homologation for american supersport racing?
> 
> rocket, were the old 636’s allowed to compete in club racing superstock/supersport classes?

For LRRS club racing, I think so. Probably allowed for other CCS sanctioned series.

Middle Weight Supersport: 4 cyl up to 640cc  
Middle Weight Superbike: 4 cyl up to 660cc

Looks like Kawi’s sale tactics is to one up eveyone on displacement to boost sales.

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