J&E Pistons- 1 ring or 2 ring

tubarney · February 13th, 2013, 06:39 AM

I'm purchasing a set of J&E pistons for the 250. Does anyone know the difference between the 1 ring vs 2 ring?

Also, Is the stock piston a 1 ring or 2?

Racer x · February 13th, 2013, 06:49 AM

Stock piston is two ring. I have always used two ring. But I have no idea why they make one ring. If you call the JE tech line they will answer all your questions. I am curious to know.

tubarney · February 13th, 2013, 07:34 PM

Turns out they make a 3 ring & 2 ring. No 1 ring.

J&E response: "Hi Bradley,
The part numbers you gave me indicate a 3 ring versus 2 ring question so I'll assume that's what you're looking for. The real difference between the two is that the 2 ring design should have less parasitic drag in the bore while the 3 ring design should provide more durability. If you're racing and need every available horsepower go with the 2 ringer, if not go with the 3 ringer.

Thank you for choosing JE Pistons!

Tj"

February 13th, 2013, 06:39 AM	#1
tubarney ninjette.org sage Name: Brad Location: Sydney Join Date: Mar 2012 Motorcycle(s): Ninja 250r 2010 SE Posts: 573	J&E Pistons- 1 ring or 2 ring I'm purchasing a set of J&E pistons for the 250. Does anyone know the difference between the 1 ring vs 2 ring? Also, Is the stock piston a 1 ring or 2?

February 13th, 2013, 06:49 AM	#2
Racer x ninjette.org certified postwhore Name: Eric Location: Iowa City Join Date: May 2009 Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X Posts: A lot. Blog Entries: 54 MOTM - Sep '18, Feb '16	Stock piston is two ring. I have always used two ring. But I have no idea why they make one ring. If you call the JE tech line they will answer all your questions. I am curious to know. __________________________________________________ Top speed 123.369mph. Ohio mile Worlds fastest 250 ninja

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February 13th, 2013, 07:34 PM	#3
tubarney ninjette.org sage Name: Brad Location: Sydney Join Date: Mar 2012 Motorcycle(s): Ninja 250r 2010 SE Posts: 573	Turns out they make a 3 ring & 2 ring. No 1 ring. J&E response: "Hi Bradley, The part numbers you gave me indicate a 3 ring versus 2 ring question so I'll assume that's what you're looking for. The real difference between the two is that the 2 ring design should have less parasitic drag in the bore while the 3 ring design should provide more durability. If you're racing and need every available horsepower go with the 2 ringer, if not go with the 3 ringer. Thank you for choosing JE Pistons! Tj"