Originally Posted by
houston
not exactly sure what the s3 is but rb has different engine specs for the most part than most novarossi engines . the n21b limited is a cheap gem
IMO and i am sure many will agree
Sad fact is that No one has them is stock...
The reason i asked about the RB is because the spec sheets are exactly the same, but that not to say the sleeves are a match or crankcase porting.. Just a thought though...