This CB550 has been lighting up the switchboard on the SOHC4 forum for the past month. The bike was fastidiously built by a guy from Portland who goes by the forum name Paulages. Paul said on the forum that "When i originally built my CB550, the engine was simply cleaned up and painted, and all bearings and bushings replaced, etc. then, I eventually built the 718cc powerplant, and found that the rest of the bike wasn't quite what the engine needed". He not only did the big bore himself, turning the stock 550cc engine into a 718cc but he also did all the welding - strengthening the old Honda frame. Paul has done an outstanding job restoring this beautiful CB550 and we particularly love the bare metal tank and pin striping. Here's just a taste of some of the specs: 1979 ducati 900SS tank and half fairing, K&N intake filters, tarrozzi rearsets, 14" progressive rear suspension, race tech cartridge emulators in forks and loads more. He goes into amazing detail on all aspects of the build so make sure you read his SOHC4 thread.
[Thanks Coop for the tip]