compression ratio,s Atlas

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Anonymous

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Any idea what the ratio is on an Atlas when using Flat top Commando Pistons, and what it might be if using the spacer under the cylinder. I think these are available in different thicknesses. I figure Its easier to buy Commando Pistons and fit the spacer,
 
Don said
"I figure Its easier to buy Commando Pistons and fit the spacer,"

Geez mate.... forget about pistons only,
Get yourself a "modern" norton & buy the whole commando
& put the Atlas in a museum where it belongs :wink:

I mean if the rotor & pistons are worn out, it will only "go" downhill anyway :!:

Just kidding folks, Don has an awesome atlas.
If you are interested to see it go here
http://users.bigpond.net.au/nortonfan/photo.htm
 
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