Campagnolo Super Record 11 Speed Rear Derailleur. Ceramic bearing pulleys. Titanium hardware. Short Cage Has Carbon Body & Carbon Cage. Medium Has Carbon Body & Aluminum Cage. New Ultra-Shift geometry increases stiffness. Carbon fiber outer plate. Cage: Short = Carbon; Medium = Aluminum. Aluminum fixing bolt. Embrace technology reduces drivetrain wear.
SPECIFICATIONS Color Short =Carbon, Medium = Aluminum Cage Short / Medium Speed 11 Maximum Cog 29T (Short) 32T (Medium) Minimum Cog 11T RD Capacity 34T (Short) 37T (Medium) RD Spring Type ULTRA-SHIFT RD Weight 179g Max Front Difference 16T
SHORT CAGE • VENDOR ITEM # RD18-SR1 UPC: 8050046167535
MEDIUM CAGE • VENDOR ITEM # RD18-SR1M UPC: 8050046166644