Sunrace Cassetta MZ903 11-51T Black 12v qx1 Fully perforated neoprene frame for

Fully perforated neoprene frame for breathability

Water-repellent fabric

Sonic welded Pull Tab SUPERIOR 4 way stretch

These neon socks may fade after several washes

Thanks to a special treatment

Sunrace Cassetta MZ903 11-51T Black 12v qx1 Fully perforated neoprene frame forOptimized for 12 Shimano speed transmissions Compatible with HG 10 11s Shimano body Weight 510gr Promotes excellent shifting fluidity thanks to the new design of the sprockets Range: 11 13 15 17 19 21 24 28 33 39 45 51 Compatible with 12 speed SLX XT XTR Sprocket material from 11 to 33t: steel Sprocket material 39, 45 and 51 : 7075 aluminium Red aluminum spider