Sturdy Rear Derailleur Dropout for DE ROSA R838 Bicycle Reliable Construction
For De Rosa 2014 r838, r848. x Bike Rear Derailleur hanger. Made of high quality material, and practical to use. Material: Aluminum alloy. Weight: About 20g. for 2015 Pro. for New Sportive Racing. for Gran Fondo 2016 & 2017.