My 07 custom is my 4th harley.My last was a 02 duece with a 180 tire and before that i had a 99 superglide with a 150 rear on it.I could take my hands off the bars of both bikes and they would track straight down the road.When i tried it with the custom it would drift a little left. I bought it with a after mkt chrome front end, 41mm.do all 200 tires and up lean more left?I am thinking of changing the rear to a 210,it might help my 258 cams with a better gear ratio.Will it lean more left with the 210?

 

Usually its because of the rear tire alignment. You can adjust the way the rear tire tracks by adjusting the axle forward or backwards on the left and/or right side of axle. Tire size should not matter.

 

Mine does this at higher speeds (60-70) but I have a lot more wind resistance on the left side (vertical license plate mount on the swing arm) and I assumed that was the cause.