I used a 52 tooth sprocket on 24" wheels for the track and that worked out well. The hard part is setting the clutch up to engage at 8.2k-8.4k engagement with the 3 shoe. It's a pain in the rear plus the washers tend to flatten out after awhile. A 56t sprocket should work well for everyday use but if you want to get the best performance out of the motor, buy a Tomar clutch. It will fully engage at whatever engagement you set it at.
The clutch made the biggest difference in my opinion.
The clutch made the biggest difference in my opinion.