Sram chainring set rival 22 crankset rival 22 bb30 50 34t 172.5mm

2-speed, without bottom bracket, black / grey, 11-speed compatible, aluminium crank arms, X Glide R chainrings made of aluminium 7075, 110 mm bolt circle, weight: 844 g (GXP 34 / 50), 860 g (BB30 34 / 50) Number of chainrings 2 Type Article main colour black Large chainring 50 T. Small chainring 34 T. Crank length 172.50 mm System compatibility 11-speed Bottom bracket BB30