Type / Pulley cage / Installation: Di2 / GS / Direct mounting Rear compatible speed / Compatible chain / Total capacity: 11 speed / HG-X11 / 39T Compatible top gear (min / max): 11/12T Compatible low gear (min / max) :28/34T Maximum difference in number of front teeth: 16T
Product model number: IRDR8050GS Battery included or built-in: No Gender target: Unisex Product size: 9.91 x 15.39 x 12.09 cm; 100 g Suitable for: Adults
