Piston and rings life. 2T vs 4T?

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Mapog

Race Dog
Joined
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Suzuki DR650
When buying a new 250 2T Yamaha, I believe you get a spare piston and ringset with.?
I dont know whether its the same for the 2504Ts with slipper pistons?

What I would like to know is how do pistonlife of a 2T compare to a 4T of similar capasity?

Everybody always talks about the simplicty of the 2T and how cheap to rebuildt, but surely their engine life is much lower than a 4T?
 

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