Sunrace components – Derailleurs and cassettes

Company Spotlight Pro Reviews


Design and Construction: Cassettes

I received cogsets in TiNitride CSMZ7T and TiAlum Nitride CSMZ7. Here are some design notes:


  • Both cassettes were the 32t version.
  • Both are higher-end versions with the TiNitride version having gold anodized bling to remind you which is which. Apparently the Ti-Nitride coating prolongs life (the lower end versions are just plain old aluminium) but since I’ve only ridden it 30 or so days there is no perceptible long-term wear in either cassette.
  • There’s no weight difference between either cassette.
  • They are both 9 speed chain compatible

The 9 speed Sunrace cogset with ti-nitride coating

Testing Environment and Setup

The Sunrace components were used on two bikes and ridden on a variety of trails in Whistler, Squamish, North Vancouver and then in Utah (namely the St George area in South West Utah as recounted in this story. I used the components on a Specialized Demo 7 and also on a Rocky Mountain Element.


A missed shift on this move on St George rock ledges might result in some angst

About the author: Lee Lau

Lee Lau calls North Vancouver and Whistler BC home. He's had over 15 years experience riding bikes mainly in western North America and in Europe. Unlike many people who learned to ride bikes on North Shore trails, he actually enjoys riding (and sometimes bushwhacking) uphill.

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