http://www.digginter.com/Shopping/fsa-super-pro-bike-chain-rings-53-x-130mm/ Precision CNC 7075-T6 plate shift ramps and pins for improved shifting performance. Black anodized CNC thereafter. Logo laser engraving. 9 / 10 speed. (more...) Sun, 24 Jan 2010 09:21:57 CST en