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115mm or 120mm rod for 10mm Super Serval?


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I did quite a few 120 rod cubs and 125 rod DM's back in the day. IMO it was a waste more expensive and weaker cranks, thinner cases. With a twister crank it's just a bigger rod pin home on same wheel diam so it has less metal around OD of crank and pin area. CW 's won't go that thin on OD/ pin area so they use snap pins (step pins) to do the job. I've used Louie's with no issues on crank wheels but I've broke few step pins.

Due to bigger bottom rod OD you must trench cases thinner to get all to clear and rod has to be trimmed. So now we have a more expensive rod, thinner cases and depending how thin rod is trimmed it can be weaker. All this for what I saw was little to no gain.

Only plus I ever liked was the flat top KTM pistons you can run with 18 mm pins. I liked those pistons.

Any thoughts on the Flat top pistons in a race gas super serval?
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