The best advice thelastkahl is to change one part out at a time. Then you KNOW what each one did. For the riser bit... I added 4" longer laid down mounted shocks on a MX bike. It added 2 1/2" to the seat height, and swing arm travel, which is what I wanted. It increased the attack angle of the forks by approx. 2 degrees. The bike felt GREAT. I ran it for 2-3 weeks, and was happy as a pig. RACE DAY... The track was full of standing water. I started out on my practice laps. The first full bore run I took, I landed a double/ the front tire caught the mud , and a high speed wobble of the bars put me over the top. When I woke up from my center track nap there were too many injuries to list here. The problem was I had hit the limit of stability in the geometry of the steering. The weight of resistance of the water was enough to yank the bars, and kinetic energy took over from there. My point is this... It may feel GREAT when you test ride. but there are too many variables to be sure you have your geometry dialed in. There is a margin for error built into the design on your scoot, but there is also a point of NO return. Have you seen a shopping cart wheel that wobbles back and forth at speed. The SAME principal applies here. There is no getting out of it. Sooooo BE CAREFUL when changing the attack angle. UNLESS you have a dope for a test pilot.
