Marathon "oversized" crank information please

[DJF]

Could anyone out there that has information on the oversized Marathon crank please post it?
Year first produced?
Types?
What frames it was able to mount in?
Pictures, ads or any documentation?
Examples?

Thank you

 

[hoofhearted]

 

[shoe3]

As always Hoofhearted delivers the goods on history!

 

[shoe3]

Dave the wave.....also

 

[hoofhearted]

Had @dave the wave never sent me that info ...
we might all be lacking in knowledge on this machine.

Many thanks to Dave @dave the wave .

..... patric


In addition ... the Marathon drive chainring sports 80 teeth.
The rear cog has 30.

 

[shoe3]

Would love to tour the neighborhood with that bit..in big ring under me What a ride to behold! Just cruise it
Friends and Romans!

 

[dnc1]

A friend of mine is looking for a similarly sized Chater Lea equivalent! He fancies cruising about on a '20s English machine with such gearing.
What a sight to behold indeed @shoe3!

 

[hoofhearted]

Many of us believe the Big Ring supplies nothing more
than shock value to the eye.

But there is more. The use of oversize rings and matching
cogs actually will incur LESS wear and tear on the teeth ..
than will a smaller ring and cog set-up of the same ratio.

Marathon ring and cog tooth count 80 and 30.

Other ring and cog tooth counts ... 40 and 15 (maybe 14 or 16).

Let's reduce again ..... 20 and 7 or 8.

Could be I am wrong.

..... patric

 

[dnc1]

Another friend describes his walking speed as 53/14. He's a former track champion.

 

[dnc1]

Many of us believe the Big Ring supplies nothing more
than shock value to the eye.

But there is more. The use of oversize rings and matching
cogs actually will incur LESS wear and tear on the teeth ..
than will a smaller ring and cog set-up of the same ratio.

Marathon ring and cog tooth count 80 and 30.

Other ring and cog tooth counts ... 40 and 15 (maybe 14 or 16).

Let's reduce again ..... 20 and 7 or 8.

Could be I am wrong.

..... patric

My friends reasoning exactly for his Chater Lea quest, less wear and tear, and therefore, in his opinion, greater efficiency.