X11EL = X11 Extra Light = 252g X11SL = X11 Super Light = 247g X11EL Gold 1/2" X 11/128" Pin Length: 5.65 mm 118 Links Weight: Extra Light, 252 grams Color: Gold Top-Performance Double X-Durability Non Directional Titanium Nitride Gold coated For Shimano, Campagnolo and SRAM 11-speed derailleur systems X11SL Gold 1/2" X 11/128" Pin Length: 5.
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