Title says, for sale is a lightly used SRAM S975 Quarq power meter for GXP bottom brackets. The chain rings are 53/39T and are in good shape. The crank was only used for one full season of racing (2 halfs and a full) and has been very lightly used since, all and all in excellent condition.
$950 shipped takes it. Will consider serious offers but am in no particular rush to sell so lowballs will be respectfully declined.