Carbon-Ti chainring X-CarboRing 50 x 110 DA9100 (4 arms), crown in Al7075-T6 aluminum alloy, structural carbon fiber with polished 3K finish and Grade 5 Titanium pin. 53 teeth external gear and bolt round (BCD ) 110 mm 4 arms. Compatibility with Shimano Dura Ace FC-9100, Ultegra FC-8000 or SRM Origin 9100 cranks and Shimano, SRAM and Campagnolo 10-11 speed groupsets.
100% made in Italy.
Weight: 79 g.