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Hutch Hi-Performance Speed Disc is an aluminum chain ring spyder for one piece cranks made in the early 1980's.
The back of the packaging says that it fits Hutch Aero-Speed Cranks, Shimano/Takagi, Suntour/Sugino, plus all other one piece cranks.
Spyders of this type were known as Power Disc.
I beleive Power Disc was the original manufacturer of this style which fits the two different bolt patterns that were used at that time.
Take a look at my
1982 Redline Proline which has a Power Disc on it that I had show chromed.
The price for the Hutch Speed Disc back in 1984 was $22.50
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Hutch Speed Disc
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