I just bought a CT125 2023. As you know it has a 14" front sprocket and a 39" rear sprocket. I am going to use this cycle for hunting 80% of the time and have realized that the stock configuration is not going to work. I want to be able to able to go thru the woods at a walking speed or close to it and have enough power to climb hills etc. I may encounter while doing it. So slow and powerful. I am 76 years old and want to get to those places I used to hunt but are 4 or 5 miles into the woods. One of the reasons I bought the CT125 was it is automatic transmission and was a newer version of the CT90 I owned many years ago which had low/high gearing, the low gearing was great in the woods and the high was great down the dirt roads but sadly they did away with that. I will be on old logging roads, paths, and lots of times just thru the woods. I was thinking a 13" front and 45" rear but don't know if that is enough of a gear down to do what I want. I think top end on this is 55 or so mph, I would be happy with that being 40 to get the correct low gearing. Any suggestions as to rear sprocket size. THANK YOU.