My question is about the rear wheel sprockets on the 07 and later bikes. Harley went from a 70 tooth sprockets on 06 and earlier models to a 66 tooth sprocket on the 07 6 speed and later models. Apparently there is a belt width difference to. I would like to change out to a 70 tooth but have not found one yet. I understand there is a gear in the primary you can change to compensate?