Z1b! For serious collectors! Custom Candy Apple paint & lots of chrome. Dozens of mods & upgrades done since I purchased in 1980. Wiseco forged 1015 kit, Webb 110 grind, Polish & ported head w/oversized stainless steel valves, Mikuni 29mm smoothbores, Accel coils w/8.8mm wires, Dyna 3 ignition. Koni "D" series rear shocks w/progressive frt w/air, 7-way adj steering damper, 16"x3.5" rear rim.....way too much to list. Kept EVERY factory part since purchased in 1980 (when it was rock stock), including exhaust system. Factory shop manual, special tools, box of organized assorted valve lash shims, 2 boxes of extra Z1 parts, 2 extra jugs (750cc & 903cc), chrome luggage rack w/adj back rest. EVERYTHING GOES!!!