Aluminum

Hello and thanks for checking out this listing of a new set of Campagnolo Micro Precision System (MPS) 52/39-tooth chainrings for your 5-arm, 135mm BCD double crankset! This set of rings was pulled off a brand new Campagnolo 10-speed crank and will come to you in the new-without-box condition seen in the included photographs. Compatible with all Campagnolo 10-speed double setups for 5-arm spiders with a 135mm BCD spider. Classic 52/39-tooth combination is perfect for flat to rolling terrain and that iconic look. PLEASE NOTE: These rings have NON-threaded bolt holes. Make sure you have the correct chainring bolts for this application. No additional parts are included. Please see the included pics of the actual rings you will receive. 10-speed Campagnolo chainrings are becoming very hard to find! Enjoy FREE Standard Shipping within the USA! Expedited shipping available at additional cost. Contact me with questions, I will do my best to answer them. Review my feedback and buy with confidence. Thanks again!