Saint SM-RT99 Center Lock rotors utilize Freeza technology: a 3-layer structure with an aluminum core and stainless steel outer layers plus aluminum cooling fins that reduce rotor surface temperatures approximately 150 degrees Celsius compared to all-steel rotors.
- Aluminum spider
- Includes standard type rotor lockring
- Requires external-type rotor lockring when installing onto 15/20mm hub (sold separately)
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