Andy

You mentioned that you have run rebuilt NF5 cranks, are these using the road NSR bearings or are you sourcing the full original HRC bearings?
Also with regards to the conrods are you measuring them up and refitting if within spec, we have heard they are of very good quality and last longer than what Honda recommend.
Given that the NF5 conrods are the same as what Honda put into the NSR F3s they should last a reasonable time.

Very interested to hear about the bearings for the NF5 cranks

Cheers
Philip