I am new to posting but I have been reading for some time, but I thought I could add to this post since I just got the Novak set up. It is for an older XB8 and I will say it is more involved that the first glance would indicate. Also the battery trays are much nicer in person than the pictures and you can place them most anywhere you like to balance your buggy. Also Novak stuff is available and as long as you follow the directions it does work. I own Castle stuff too, it is very nice, but given their track record it may be awhile before the Castle stuff is available.