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RH vs LH threads

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Hopper30/03/2021 06:13:54
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Posted by Bill Pudney on 30/03/2021 00:14:13:

I read The Book in the mid 70s, it seemed appropriate at the time. I am a technical person and have been all my life, I also understand the need for beautiful things, and beautiful design. F'instance, for me a 1957 Grand Prix Moto Guzzi 500cc is just about the epitome of pragmatic, elegant design. Of course there are examples wherever you look, but for me that 'Guzzi is perfect!!

cheers

Bill

Pragmatic and elegant down the straights. Not so much so on the corners. I'll take a Manx thanks. Elegant in its simplicity, straight or corner.

Gerard O'Toole30/03/2021 09:18:26
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Posted by Andy Stopford on 15/03/2021 12:14:40:

Zen and the Art of Motorcycle Maintenance?

Too much Zen, and not enough motorcycle maintenance, I thought when I read it as a teenager.

And he completely blew it for me when he's doing an oil-change and just lets the old oil run out onto the ground.

Quality, Robert, quality.

I Think Pirzig addresses that in the very first page of the introduction/preface when he writes

"it should in no way be associated with that great body of factual information relating to orthodox Zen Buddhist practice. It's not very factual on motorcycles, either"

Bill Pudney30/03/2021 09:42:43
622 forum posts
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Sorry I mean't to say the single cylinder one, not the V8!! The V8 was certainly an amazing design, but for me the single is so beautiful!!

cheers again

Bill

John Haine30/03/2021 10:07:25
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322 photos
Posted by John MC on 29/03/2021 09:27:05:

I thought it time to ressurrect this thread. The choice of LH vs RH threads on a bicycle is done for good reason. Considering the pedals, RH thread on RH side, the often made assumption is that the pedal rotates CW on this side , it doesn't, it rotates ACW, the direction that will undo a RH thread. So why the RH thread?

A couple of the replies to my original question have "got it", what I am looking for is a simple explanation. So, once again over to you guys.

John

So you can put a spanner on the flats on the pedal, with the pedal horizontal and facing forward, so the spanner handle is near the bottom bracket. Then stand on the handle to exert maximum torque to undo while holding the bike down and back firmly.

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