Used Quarq Elsa GXP 175mm 130 BCD 53/39 SRAM chain rings
$500
Good condition- works perfectly. Upgraded to Quarq DFour91. Has latest firmware installed.
Scratches on crank arms and bottom of cranks from use.
Calibration check with 20kg weight and within 1.5% accuracy.
Chain rings in great shape.
Cash or Paypal Only- no trade.

Email me gte534j at gmail