Nickasil

[F-16Guy]

Have any of you had your cylinders nickasil'd? It's supposed to reduce friction and make your top end last longer. I know they do it to bikes, mainly because the cylinder is aluminum, so it requires a hard coating. I wonder if having your piston skirt and cylinder coated would help the higher HP, higher revving bikes with longevity? Food for thought.

[wilkin250r]

I've seen alot of aftermarket top ends that offer Nikasil coating.

Mine has it, but I've only had it for a few weeks, so I haven't got a regular rebuild schedule on it, so I don't know if it adds to longevity.

[310Rduner]

wear less at the cost of more expensive bore jobs..

if i were to get a new aftermarket cylinder again i would get it.. i am doing pretty good with pistons i think.. im on my 2nd piston.. going through one about once per 6 months or so.. riding about 3-4 trips per month

[White_Knuckles]

Coated piston skirts? I thought the rings stood off the piston side surface away from cylinder contact.

[r_stilz]

I would go with Nitriding or if you have the money Chrome Plating

[F-16Guy]

Originally posted by White_Knuckles
Coated piston skirts? I thought the rings stood off the piston side surface away from cylinder contact.
The skirt does come in contact with the cylinder wall. Next time you have a top end apart, look at the skirt, there will be some indication of wear.