Hello,
Does anyone know of a reusable air filter for the NC35 such as a K&N if so do you have a PN handy?

Thanks!

There are no standard off the shelf reusable air filters available. You can build your own with a used air filter and cut off the foam and refit/glue a piece of new foam on it like a k&n for example (pipercross foam is what I used before).

viewtopic.php?f=24&t=23148

Did this on my track bike last year - works perfectly