I have watched very closely on these motors and saw a few of them broken in. But one thing is certain, many years ago we already had rods that made of 1 bushing only. Ron paris rods are all like that and they held very well. So it is not a new thing and it is old tricks. One less thing to break that's for sure. If you can get one at a good price get it, it is worthwhile.
Originally Posted by speedy100
have you tried the falcon as well ? they all said falcon and boss are better than Ninja....in 21 class the falcon does not have the copper bushing where connect the wrist pin but the Ninja does. I really want to see the inside of those 3 engines if they are not the same...............thanks