Hello,
I just joined the forum when I saw this thread. I am Wolfgang from Vienna / Austria, 56 years old and regularly do restorations or custom bikes for myself.
You may cruzify me now when I tell my story since it is not related to HONDA CB´s but BIMOTA HB1 - my intention is not to highjack this thread, if you feel so let me know and I will stop immediately.
I am building a BIMOTA replica as well, as close to HB1 as I can get, but with a SUZUKI GT750 engine in. There is 2 reasons for this - I am two stroke nut and I had a spare engine tuned to TR750 specs left.
Apart from the engine and from the exhaust pipes, my bike is a HB1 replica.
Complete frame / swingarm - using similar swingarm pivot construction as BIMOTA / Rob:





Original BIMOTA Rearset:

AP Lockheed master cylinder:

SUZUKI Tacho with modified face:

Battery is a LiPoFe4 hidden in a standard lead acid battery cover.

The engine is expected to have ca. 90 RWHP.
Many details on the pics are still preliminary mockups, like the rear axle excenter adjuster, triple clamps, dummy engine block, etc.
Plan is to have it completed in spring 2017.
If someone can give me a hint on the closest frame color match to a HB1 I would be very happy - I am very sensitive to correct colors in all my rebuilds.
best regards
Wolfgang