My 206XXX has superblends,
NU306E FAG Germany so unlikely to be originals, plus the factory despatch date is Sept 72 which means it was held back for some reason as its out of sequence with other 206's build despatch dates which were earlier. The cases have no coverplate over the distributor hole and the machining at the back of the cases is the later type to fix the cracking at the engine mounts as detailed at Atlantic Green.6/MRJA30 or FAG NJ306E (unlikely to be original) 'Superblends'?
Thanks for sending this LAB! This, I'm sure, will answer a question or two of mine.According to Norton Service release N.2/9, August '72, the (original) R&M/RHP 6/MRJA30 bearing known as 'Superblend' was fitted from serial 211891. The Combat series, however, ended at 211110.
Commando Main Bearings Service Releases | Norton Owners Club
www.nortonownersclub.org
You can read the 'Superblend' story here:
Good point! Clearly, I'm overthinking the heck out of this issue with my bike. When it arrives this weekend, I just need to enjoy it for what it is and get myself ready to ride it!My 206XXX has superblends, but also gouges from a broken rod, +20 pistons and -30 shells showing at least one more likely 2 rebuilds. So I would not assume it has superblends from new but may have them from a rebuild or dealer fit.