FSA makes these 10-speed Super Outer Chainrings for their own cranksets, but they're also a great choice for Shimano cranksets as well. They're ramped and pinned, so you'll get top-notch shifting quality with no chain suck. The Super is made from CNC-machined AL7075 T-6 alloy. The design calls for more aluminum left in place near the interface points between ring and spider. This thickness gives the Super Chainrings added flex-resistance -- ideal for hard accelerations. Please note that these rings are for 10-speed double-chainring cranksets only.

FSA makes three Super Outer rings: A 53t/130mm compatible with both Shimano and FSA non-compact cranksets; and 50t/110mm and 52t/110mm rings compatible only with FSA compact cranksets.