GT Power disc (new production) with a 36T chainring * Color: SILVER anodized power disc / WHITE chainring / CHROME chainring bolts * Material: Aluminum power disc and chainring / steel chainring bolts and spindle adapters * Interface: 110mm bcd (so any 110mm bcd chainring can be used with this power disc) * LASER ENGRAVING OF THE GT WINGS LOGO AT 9:30/12/2:30 o'clock on the power disc * Chainring uses 1/8" chain only. * Fits one piece crank (23.7mm) and includes 19mm AND 22mm spindle adapter hat washers.