Just found this forum, thought I'd step in. Been a member on others so, Why not? I ride a new to me '89 4spd Sportster, 883. Have added solid rear wheel. Someone else converted to belt. I will soon install dual 4 pot calipers and mag up front. No performance enhancements except the "harley tax" mods. I've only had the bike for about 5 years and it is my first bike. Kinda got a late start.