Question: Are the 12s Helix Race and Helix Plus cassette sections cross-compatible?
Answer: Yes, 12s Helix Race and Plus cassette sections are cross-compatible. 11s parts are not cross compatible with any 12s parts.
Question: What is the difference between the Helix Race and Helix Plus Cassette?
Answer: Weight and finishing.
The Helix race cassette has a lot more excess material machined off when compared to the Helix Plus. The weight difference is approximately 22g.
Additionally, the Helix Race steel section uses a more durable nickel coating on the steel section whereas the Helix Plus uses a black oxide finish on the steel section. Alloy sections on both cassettes use a hard anodize finish.
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