Originally Posted by bemiiten
How often do you need to put in new pistons? Integrating the cylinders into the crankcase has been status quo with high performance inline fours for two decades.
Yes, I know it has. I was wrenching professionally in the 1980s when they started to make that change. Didn't like it then, don't like it now.
I've done plenty of piston and/or ring replacements and they become a whole lot harder when the cylinders are integral to the block. One may not need to do it often, but it didn't used to be so bad if you did; now it will be a full teardown of the motor and the cost of that will result in bikes being junked. IMHO.
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