you sure?
http://tkocompetitiondev.com/product...-woffset-race/

thats the replacement for 16002

I'm pretty sure that the bearing that is posted in the link is the one you're looking for...

No that's the wrong bearing. For MITO4 you need a bearing with following dimensions:
Ø14,5x26x5,7x4,7mm - 11 balls

Will be hard to find a replacement.
Original NOVA numbers are:
16009 for steel bearing
16006 for ceramic bearing

Sorry, same as keep off 7,mito = virtus + keepoff technology

warning to anyone runing novarossi engines seems there are some bad conrods
out there
after runing novarossi and novarossi based engines for nearly 20 years i had
my first new con rod fail and novarossi decided they do not warrantry replacment rods or the damage they cause to your engine.

Any further link to this happening on others engines, or forums? What motor, how many gallons? Been running Nova based motors in On-road since around the time Serpent had the Nova/Mega 21's and TX15 and knock on wood, no conrod failures here. Offroad I have only run the P5XLT and a P3XS, Strange.

Please post up the engine model and batch and year from the case if possible.

His story in the Nova onroad topic:

http://www.rctech.net/forum/14774327-post5191.html

Kinda funny, after 3 months of used. Within that period, anything can happened

If I am right he just placed a new rod. Not sure which one he have placed, this motor comes with a lighter new designed R4 rod which I do find it tricky. When a replace is needed I do replace them with the rock solid R7

the engine was a mito 35 on road engine had just about been fully broken in
and was in exellent condition when the r7 rod was replaced to keep the engine
reliable. the new r7 rod bush failed on the 5th tank of fuel.

not 3 months of use, novarossi have had my returned engine for 3 months
before looking at it.

the replacement r7 rod was purchased from my countrys distributor
in the first shipment novarossi sent out after there summer break

On the R7 rod there is also a number engraved, I believe the latest is around 15 or 16.