Sunshine Ultra-Light 12s CNC Hollow Integrated Road Cassette 28T/30T/34T/36T

30T: 11-12-13-14-15-16-17-19-21-24-27-30, a b o u t 139g. 34T: 11-12-13-14-15-1 7 -1 9 -21 -24 -27 -30 -34, about 161g. 28T: 11-12-13-14-15-16-17-19-21-23-25-28, about 138g. 36T: 11-12-13-14-15-1 7 -1 9 -21 -24 -28 -32 -36, about 164g.