The Super Record derailleur is light, fast & precise, thanks to the careful selection of materials & Ultra-Shift geometry that helps components perform at their best. Together with new chainrings & chain design, the shifting system is much faster & more precise than ever.
Features: For double standard & Ct crankset Max tooth difference 16t Max chainring size 54t Min chainring size 34t Composite & aluminum 11s fork M-brace body Even-O clamp Z-shape lower cage Titanium bolts Antifriction treatment Weight: 72 g