Bicycle Flywheel, Ultra Light 11 Speed Cassette Mountain Freewheel 9‑42T Compatible for SRAM XD

【Heat Resistance】: This flywheel uses high-strength steel, has good corrosion resistance and heat resistance, and is compatible with SRAM XD hubs. 【Strong Oxidation Resistance】: This freewheel cassette has strong oxidation resistance, is not easy to rust, and has a long service life, so it can be used with confidence. 【Hollow Design】: This freewheel cassette uses a hollow design to reduce weight and will not add too much burden to your bicycle when used. 【Sturdy & This flywheel is made by tempering and quenching process, which has higher strength, durability and wear resistance, reducing the trouble of frequent replacement. 【Exquisite Appearance 】: The of this freewheel cassette is chrome-plated, and the is silver, and the appearance is exquisite.