GT BMX power disc. Obviously it is used, however, still in good condition with the stampings still evident except for a small bit as shown in the last photo. Also known as the GT donut power disc and found on both GT freestyle and race bikes.
Takes both 110 and 130 BCD chainrings so you can use the GT branded ones or others like Sugino, Takagi, Tuf Neck, Pro Neck etc.
This originally sold on eBay however the buyer didn’t complete the transaction so it is still for sale.
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