trash,
After the FREAK I was getting about 45 mpg as opposed to the 50 mpg with the stock air box. I have since gone to the 19 tooth front sprocket and am now getting 48-50 mpg again. The whole reason for me installing the FREAK was so I could use a bigger front sprocket for lower RPM's on my longer rides (4,500+ miles) without sacrificing the "out of the hole" advantage. When I take the Interstate freeways I was only getting about 40 mpg at the higher speeds. This has worked really well for me. It takes some tweaking, but for me it was well worth it.
I mostly ride one up and do not have to stop on many hills for an uphill take off. It took some getting used to, but I also like the bigger sprocket better now. Some have said you have to run in 4th too much with the 19 tooth, but I don’t really see the disadvantage and am not afraid to shift a little bit. There is a really noticeable difference in the RPM’s when running 70-75 on the Interstates and I don’t mind “putting†in 4th sometimes on the local mountain roads.
