I'm gettin old and just bought a YZF400 to ride with my 8 year old son. Looking to slow down first, second..., gear. After reading most opinions, I'm thinking of 12/52. Is this WAY too slow? I grew up riding YZ400 (two strokes) and feel comfortable on a bike, soooo. Also, I have enjoyed reading many "threads" on this site and hope that the suggestions will get me into this forum as well as riding!!