My AF trail/woods/singletracker I run a silver bottom end for the slightly taller 4th and 5th. The sand bike and the snow bike I run black bottom end close ratios on. The sand bike is fine with 5 gears. The snow bike I switched out to one of my black bottom ends this year because I thought I would prefer the gears stacked close for powder climbs, I have been happy with the close ratio tranny and the long track everywhere except trail. To be honest I don't really dig trail that much anyway but if I could bang on a 6th gear I certainly would.
I do believe that cylinder is a Liger cylinder, same they have stacked onto the CR5 bottom and KX5 bottom ends...so maybe that Klim bike pipe would work or just one of the 500 offerings. I'll have to look up a couple guys on the 500 site and see what pipe they used on their Liger builds.
At first I was kind of worried about locating the motor properly in the frame as it looked like it didn't use the swingarm through hole. On the AF's that's kind of how you start by laying it in there with the swingarm bolt in it, get it aligned correctly from your counter shaft sprocket to the rear and build off of that. Looking at factory cases on ebay I see they do have that hole so hopefully worst case is a set of bushing to fit motor to frame/snow kit.
So who is going to bite the bullet and go for it?
On a side note I did see a little clip of a set of Timbersled drive rollers, when the guy was done installing the rollers he pushed the kit across the floor and when he let go it probably rolled another 3 feet. When I think about the resistance on my kit I think if mine rolled that easily I could put the spank down on a 100hp bike that had to turn my kit in it's current configuration. This was just some private movie a guy at the shop had on his phone, he said his buddy is working on a patent or something. I told him I would buy a set the minute they become available.
