Commando engine in Featherbed

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6 pages of the replies, and the OP hasn't replied.

Oh well...

Its strange that the OP started this thread and not to be heard from again, you think he would have more questions or give us some idea in what he is thinking or planning to do, he must have had a interest for starting this, anyway anything to do with Commando/Featherbed is always a interesting thing, well for me anyway, but so many comment who are experts but have never built one or ever rode one, but its always interesting to have their opinions and most proberly get sick of me raving on about my 850 Featherbed so forgive me for that but my Commando/Featherbed has been my life for over 38 years now and I have clocked up a lot of hard miles in that time and its been a very reliable bike and has never let me down and has out lasted all my mates British bikes and where I am there is no other like it.

Ashley
 
Its strange that the OP started this thread and not to be heard from again, you think he would have more questions or give us some idea in what he is thinking or planning to do, he must have had a interest for starting this, anyway anything to do with Commando/Featherbed is always a interesting thing, well for me anyway, but so many comment who are experts but have never built one or ever rode one, but its always interesting to have their opinions and most proberly get sick of me raving on about my 850 Featherbed so forgive me for that but my Commando/Featherbed has been my life for over 38 years now and I have clocked up a lot of hard miles in that time and its been a very reliable bike and has never let me down and has out lasted all my mates British bikes and where I am there is no other like it.

Ashley

Your Commando engined featherbed interests me. My friend raced an Atlas very successfully in A Grade races in the late 1960s. He still has it. Your bike is probably better. Actually, I think the Commando is a bit of an indictment of the motorcyclists back then. It was apparently built with isolastics because the CB750 Honda was very smooth running. I rode one of those Hondas when they were new. It was a stiff, bad handling piece of shit - a 650 or 750 Norton was much better, but they vibrated. Your bike is the next logical step, if the effect of the CB750 competition was not a factor. The rigidly mounted motor in a featherbed is never a problem, unless you should have been riding a motor-scooter in the first place.
 
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Your Commando engined featherbed interests me. My friend raced an Atlas very successfully in A Grade races in the late 1960s. He still has it. Your bike is probably better. Actually, I think the Commando is a bit of an indictment of the motorcyclists back then. It was apparently built with isolastics because the CB750 Honda was very smooth running. I rode one of those Hondas when they were new. It was a stiff, bad handling piece of shit - a 650 or 750 Norton was much better, but they vibrated. Your bike is the next logical step, if the effect of the CB750 competition was not a factor. The rigidly mounted motor in a featherbed is never a problem, unless you should have been riding a motor-scooter in the first place.

Al I have ridden a Commando/Featherbed that the motor wasn't balanced at all, it had a stock Commando motor in it, I was up at BJs in Brisbane getting some parts and there was a fellow who was standing beside me and was listening to me talking to the shop boys, they knew my bike well as most of my parts came from them, well the other fellow took a lot of notice about my Featherbed and when I was leaving he asked about mine and told me he built one but can't ride it much because of the vibrations it had and asked if I could come over and have a look at it.
So a few days later I went over I rode mine over to compare, his was completely set up different, for one he used the Dommie engine mount set up with the motor sitting straight up and the motor not balanced at all, just a stock 850 motor he hadn't even touched the motor, his Commando was involved in a major accident and was wrote off.
I took it for a ride and I tell you I didn't go far on it, it was so bad and felt terrible to ride, unsafe really, so much virbrations, in the engine mounts, foot peg and way up in the handle bars, it was so bad my feet were moving on the foot pegs, everything on it was not right.
I then took him for a ride on mine and scared the living shit out of him taking him through a few sweeping corners in his area at speed, I could feel him tension up on the back.
Well we sat down and I told him what was needed to be done he asked me to do it for him but at the time I wasn't interested as I had a few things on the go as well working, but I gave him a list of things he needed to do and the people to see I also cut new engine mounts for him out of the same patten as mine as I had access to a profile cutter where I worked at the Tec College, after helping him out with a few things I never heard from him again, so never did find out how he went with it, that was back in the late 80s.

Ashley
 
I played with hotted-up 650 Triumph motors for years. Even with those, if you want to ride them fast, it is better to raise the balance factor. Some guys raise them to 79%. My mate's Atlas is that high. There was a 650 Triumph ( Saint ) which had a light crank as standard. It never performed as well as the motor with the heavy crank, and nothing like the heavy crank with the raised balance factor. I am amazed at how well my 850 motor performs with the heavy crank and the raised factor. Norton really knew what they were doing when they designed that motor. The hole in the bob-weight was obviously added later when they fitted the motor into the Commando.
You bike is probably what the Dominator was intended to become.
 
Ash, you have got me thinking. My friend Greg Lawn owns Central Motorcycles in Huntingdale in Melbourne. I was in his shop about 20 years ago and there was a featherbed ES2 there, which he had brought back from America. It was not expensive. Fitting a Commando engine into it would be dead easy. It would make a lovely bike, everything was there ready to go. Greg goes to the west coast of the US, visits the wreckers and brings back container loads of bikes.
 
Ash, you have got me thinking. My friend Greg Lawn owns Central Motorcycles in Huntingdale in Melbourne. I was in his shop about 20 years ago and there was a featherbed ES2 there, which he had brought back from America. It was not expensive. Fitting a Commando engine into it would be dead easy. It would make a lovely bike, everything was there ready to go. Greg goes to the west coast of the US, visits the wreckers and brings back container loads of bikes.

Sounds like my mate Don who got me into Norton's and Featherbed frames, he did the same thing a long time ago,he spent a lot of time over in the States, he has bikes everywhere in his house and in his huge shed with a top floor storage area for his collection, Don got into Tritons after he sold me one of his Featherbed frames, his race bike never had much success as he ran to high of compression and kept blowing them up, his thinking was more compression the faster they go, but it took him a long time to realize not so he makes his own cases and one piece Norton cranks for them but he can't race them in any classic classes, he also has made a few twin engine Triumphs that he use to show and a twin engine drag bike, he is a real petrol head but mostly for show now, he built the drag bike for his son to run but his son don't even want to go there.

Ashley
 
Your Commando engined featherbed interests me. My friend raced an Atlas very successfully in A Grade races in the late 1960s. He still has it. Your bike is probably better. Actually, I think the Commando is a bit of an indictment of the motorcyclists back then. It was apparently built with isolastics because the CB750 Honda was very smooth running. I rode one of those Hondas when they were new. It was a stiff, bad handling piece of shit - a 650 or 750 Norton was much better, but they vibrated. Your bike is the next logical step, if the effect of the CB750 competition was not a factor. The rigidly mounted motor in a featherbed is never a problem, unless you should have been riding a motor-scooter in the first place.

Re;" It was apparently built with isolastics because the CB750 Honda was very smooth running."
the Commando came out in 1967 , about 2years before Honda came up with the first CB750!!!!!
 
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