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Fred659 · January 31st, 2020, 11:11 AM

Hi, it's my first post here so I hope it will be well received.

I'm in the process of building a 09 racer and searched every where and couldn't fin any data on how cc's the pregen combustion chambers have.

I found this info for the 08-12: 11.7cc

https://www.aperaceparts.com/tech/20...ninja250r.html

if someone has the info, I would really apreciate to have it.

The reason is that I want to try to bump the compression with pregen piston in the newgen.

Thanks

January 31st, 2020, 11:11 AM	#1
Fred659 ninjette.org member Name: Frederic Location: Quebec City Join Date: Jan 2020 Motorcycle(s): 08 Race Prepped ZX-10r, 09 Race Prepped Ninja 250 (300 motor). 74 Norton Commando 850 (Project) Posts: 50	Pregen: Combustion Chamber CC Hi, it's my first post here so I hope it will be well received. I'm in the process of building a 09 racer and searched every where and couldn't fin any data on how cc's the pregen combustion chambers have. I found this info for the 08-12: 11.7cc https://www.aperaceparts.com/tech/20...ninja250r.html if someone has the info, I would really apreciate to have it. The reason is that I want to try to bump the compression with pregen piston in the newgen. Thanks