New con rods from MAP or keep the stock ones?

R&R rods are lighter than stock @ 400 grams and are bushless like a norton rod, so less small end weight? - stock ones averaged out to 420 grams when I weighed em. Map are heaver @430 grams, Hepolite marginally heavier yet @ 432 grams. LF harris say they're OEM, but nobody lists a weight, and I can't find 'em stateside. I'm thinking whichever way I go it's like 10 grams difference totally, probably less than that on the little end... so no big deal? total over both rods would be 20 grams more if I went with the steel MAP rods. the difference would be 40 grams less with the R&R. If I guy was to roll the dice and just run em no rebalance, would you go less or more weight and why? Balance factor goes down when the rod weight goes up and vice versa... assuming the crank was actually factory balanced to 85% heaver rods would move it closer to 80, lighter rods closer to 90... any thoughts? Also, im more inclined to not care so much since the rods that were in it were 6 grams apart to begin with...
 
Hello? Was there any answer to your questions? I am in the same place right now so I would like to know.
 
" I guess that the modern detergent oil went to work breaking down the sludge in the probably jam packed trap and pumping it through the motor."


Very real and oft repeated "self inflicted wound"
 
concours said:
" I guess that the modern detergent oil went to work breaking down the sludge in the probably jam packed trap and pumping it through the motor."


Very real and oft repeated "self inflicted wound"
Click to expand...
I mount the pulpit : Never start the bike up and see how it goes. Instead strip it and see how it is. So much cheaper and
easier in the long and even not so long run.
 
Fast Eddie said:
What are you wanting ‘em for Onder ?
Click to expand...
I want rods for a T150. Stock rods I have are 8 grams apart. They are not from the engine abuilding rather just bits collected over too many years. Hepolite steel rods appear to be the cheapest set on offer. They claim to be with in one gram of each other but they do not specify the total weight of each rod. And they claim to me be in the UK.
Trying to keep this within sensible financial bounds but you know how that goes...
 
Onder said:
I want rods for a T150. Stock rods I have are 8 grams apart. They are not from the engine abuilding rather just bits collected over too many years. Hepolite steel rods appear to be the cheapest set on offer. They claim to be with in one gram of each other but they do not specify the total weight of each rod. And they claim to me be in the UK.
Trying to keep this within sensible financial bounds but you know how that goes...
Click to expand...
Thunder Engineering alloy rods…
 
You must have wondered at some time why the modern bikes usually use steel rods. Because you don't have to worry so
much about scratching the rod during install? :-)
 

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