1975 Norton Commando 850 12K??

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May 30, 2026
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Another Norton popped up here in NM. This one is a 1975 Commando 850 with 6800 miles on it. Wants 12K. Super clean and all original. Seller states the rear master cylinder needs rebuilding as well as needing new tires. Has the original exhaust. Starts and runs well. I looked at Bring a trailer auctions on similar bikes and prices are all over the place. just don't get the opportunity to see these around locally. Let me know your thoughts on value. Comes with original tool kit, owner's manual as well as full documentation and service manual. Everything works as it should. Thanks, again for all input. See listing below.
 
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Looks clean, but only one picture. Does have limited ownership, so that's a plus. Appears to have Dunstall silencers, added value, but a not whole lot.
I think 12k is steep for a MK3 that needs tires and rear m/c maintenance for beginers. Starter motor should have been upgraded, if not, another deduction. Trans layshaft bearing should have been replaced by now.
You'll have to converse with seller to know what their knowledge of Commandos is about know weaknesses is for this model.
Up to you, if you want a Commando, be prepared to do your own maintenance and research what's been done about known defects.
 
For 12K it would have to be really nice and no work required. Don't go by Bring a Trailer prices or if you do, multiply by 2/3 or so. Find the local Norton club.
Be aware.... "Norton makes mechanics out of mortal men".
 
A large part of a bikes value is ; If it is the model you want, if you can actually see and ride the bike and how close it is to you to avoid shipping. I can't think of many or any bikes that can't use a few thousand in repairs, or more. Parts are very expensive now a days and shop rates for a real mechanic should be over 100$ per hour.
Lots of the bike "mechanics" on You tube are not as good as lots of people seem to think they are. The less an original bike has been worked on can be a very good thing as lots of work is done by people who are clueless.
 
The days of getting $12K for a MkIII, even in excellent shape, are more than 2 years behind us (other than BaT which are catching up to the down-trend in the last year or so)
 
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