Sugino (Maxy)
01-26-21, 12:04 PM
#51
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I recall about 10 types of "Maxy" cranks, all of them swaged. they are the only swaged cranks that I've
seen that are stamped "forged". the reason that Sugino cranks are measured 171mm is that it equals
6 3/4 inches (165mm =6 1/2) keeping in line with old British cottered spindles.
seen that are stamped "forged". the reason that Sugino cranks are measured 171mm is that it equals
6 3/4 inches (165mm =6 1/2) keeping in line with old British cottered spindles.
03-25-22, 12:56 PM
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When Shimano introduced 600EX (a.k.a. Arabesque) mid-way though 1977, the older 600 remained in production. Then for the 1980 model year, Shimano changed their part number format. 600 became the 61xx series and 600EX became 62xx series. The FC-6100 crankset used a 3 arm spider and had been originally manufactured as the GC-100. It had been introduced for the 1976 model year and used a proprietary 95mm BCD wich accommodated 30T small chainrings, as 600 was orignally intended as a "road and touring" group.
There wasn't a FC-6100 5 arm crankset and the FC-6100 and FC-6200 cranksets were both introduced at the same time, simply being products carried over from the old part numbering system.
03-25-22, 03:16 PM
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I missed this the 1st time around, so thought I should post for posterity's sake.
When Shimano introduced 600EX (a.k.a. Arabesque) mid-way though 1977, the older 600 remained in production. Then for the 1980 model year, Shimano changed their part number format. 600 became the 61xx series and 600EX became 62xx series. The FC-6100 crankset used a 3 arm spider and had been originally manufactured as the GC-100. It had been introduced for the 1976 model year and used a proprietary 95mm BCD wich accommodated 30T small chainrings, as 600 was orignally intended as a "road and touring" group.
There wasn't a FC-6100 5 arm crankset and the FC-6100 and FC-6200 cranksets were both introduced at the same time, simply being products carried over from the old part numbering system.
When Shimano introduced 600EX (a.k.a. Arabesque) mid-way though 1977, the older 600 remained in production. Then for the 1980 model year, Shimano changed their part number format. 600 became the 61xx series and 600EX became 62xx series. The FC-6100 crankset used a 3 arm spider and had been originally manufactured as the GC-100. It had been introduced for the 1976 model year and used a proprietary 95mm BCD wich accommodated 30T small chainrings, as 600 was orignally intended as a "road and touring" group.
There wasn't a FC-6100 5 arm crankset and the FC-6100 and FC-6200 cranksets were both introduced at the same time, simply being products carried over from the old part numbering system.
In between the 3 arm and Arabesque is this 5 arm fc-6100. BTW some of the FC-6200 Arabesque were reportedly swaged. It was around this time Shimano was acquiring Takagi who produced earlier cranksets under contract.
https://velobase.com/ViewComponent.a...b-4f5ee74df3b8
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Last edited by dmark; 03-25-22 at 09:22 PM.
03-26-22, 07:09 AM
#54
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Originally Posted by dmark;22450900...In between the 3 arm and Arabesque is this 5 arm fc-6100...
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https://velobase.com/ViewComponent.aspx?ID=abf62a93-8b2d-42e0-a3eb-4f5ee74df3b8[/url]
I don't see how that could be an FC-6100 crankset, given that it has a December 1977 date code and Shimano was still using their old GC-XXX part numbering system at that time.
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