| Identifying Marks | | BCD  | |
| Tooth Count Range | 36-44 | Ring Position | Middle; Small |
| Chain Pitch | Half Inch (modern standard) | Chain Width | 3/32" |
| Material | | | |
First introduced alloy chainrings which were used on a number of other company's crankarms, TA soon move on to producing their own crank arms as well and then expanded into other products.
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