I would like to know the differences between the SunRace CSM-990 and the SunRace CSM-980 - 9 spd cassettes besides the same gear cog counts as being 11-13-15-18-21-24-28-34-40T.
Is the the material ? Which one is better made ? ..or would last longer ? Thank-you, Kim Hetzel. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/9f3c997c-114c-44c7-a410-3d92e643d4c8n%40googlegroups.com.
