> This link discusses the different forge processes: > http://www.thetandemlink.com/articles/aluminum.html I am pretty certain that my Sugino Maxy cranks (purchased in 1975-6, $29.95 cranks and BB complete) were melt-forged
jim beam said:
why? what features lead you to that conclusion?
Uhh, because the Sugino catalog of the era said, "New! Melt Forged Maxy Crank"
that's a long way from "i am pretty certain". and i asked "what features" because i wanted to know whether he thought he could distinguish just from external appearance. that ok with you?
I am pretty certain that my Sugino Maxy cranks (purchased in 1975-6, $29.95 cranks and BB complete) were melt-forged and anodized. So, there is at least one mistake in this article listed above.
John Thompson said:
I still have a Maxy of that era, but it is definitely not anodized.
Original stamped outer ring 3-bolt type were tumble polished I believe.
Later Maxy NJX (the first 110mm chainrings! woo hoo!) and Super Maxy were anodized. Super Maxy in colors. -- Andrew Muzi www.yellowjersey.org Open every day since 1 April, 1971
I saw a number of the early aluminum cranks with swaged on chain rings fail at the swaged joint when these designs first came out. A few Sugino Maxi cranks plus SR and other makes prejudiced my opinions about these designs.
I am pretty certain that my Sugino Maxy cranks (purchased in 1975-6, $29.95 cranks and BB complete) were melt-forged and anodized. So, there is at least one mistake in this article listed above.
Quoted message said:
John Thompson said:
I still have a Maxy of that era, but it is definitely not anodized.
Quoted message said:
Original stamped outer ring 3-bolt type were tumble polished I believe.
Later Maxy NJX (the first 110mm chainrings! woo hoo!) and Super Maxy were anodized. Super Maxy in colors.
The Maxy I currently have (5-arm, 144mm BCD spider swaged onto aluminum arm) has the same unanodized, tumble-polished finish as the original 3-arm swaged Maxy.
