I personally like Nallin for the 1250 conversion but Revolution Revolution Performance (http://www.revperf.com/xl.aspx?action=perfKits) has what I think is the origonal Nik-a-sil cylinders with similar pistons and etc. The difference is $200.

Well lets hear about it.

Give Arron or Justin at Nallin a call and they'll tell you all about it. What I took out of it when I talked to them was the Axtell cylinders where of better quality. Not that the Revolution where crappy by any means. If your really interested give'em a call. Best costumer service I think I've ever had.

Yeah I am set with Nallin, just lookin for any insight into who/what Revolution are. they seem new but the package looks like tho old Nallin one.

I can't say enough about Nallin. I have about 2500 miles on my 1250 Stage 3 (w/Axtell Nikasil Cylinders) and the bike runs awesome. I highly recommend Nallin, they are proven for power and reliability.

--Sean