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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.

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i have a FSA SL-K Light, carbon, BB30 with...

i have a FSA SL-K Light, carbon, BB30 with a shimano ultegra di2 6770 group. it has 52/36 chainrings. Can i put this 53 and a 39?? is it compatible?

Best Answer

Hi Arturo,

It comes down to the Bolt Center Diameter of your Crank. I checked on FSA's website, and the SL-K LIGHT Crankset with 52/36 rings uses a compact 110 mm BCD. The 53 tooth chainring we are selling uses a standard 130 cm BCD, so it will not fit. Here is the link to the product on the manufacturer's website:

Please let us know if you have other questions.