M4 8-Speed Cassette
.CSM400 8BU 12-32T .8-Speed .Lightweight Design .E (ED Black) . Weight - 364g [BU]
Specifications - Cassettes MTB 8-Speed.pdf (208 kB)
M5 8-Speed Cassette | CSM55 8AV 11-34T | CSM55 8AU 11-32T
• Lightweight Design • CSM55 8AV 11-34T • CSM55 8AU 11-32T • Finish - U [Zinc] / E [ED Black] • Weight - 346g [AV] / 334g [AU]
Detail
M6 8-Speed Wide Ratio Cassette & for Juvenile series | CSM680 8AY 11-42T | CSM680 8AX 11-40T | CSM680 8BX 12-40T
.CSM680 8AY 11-42T .CSM680 8AX 11-40T .CSM680 8BX 12-40T *not for Juvenile series .8-Speed Wide Ratio .Lightweight Design .N (Nickel) / E (ED Black)  .506g(AY)/456g(AX)