SUNSHINE Ultralight 12 Speed Cassette Road Bike 11T-28T/32T/34T 12V Flywheel K7 12S Freewheel for Shimano M6100

The reviewer mentions the SUNSHINE Ultralight 12 Speed Cassette only briefly in the context of gravel cassettes, stating it is cheap, available in many configurations (9 to 13 speed, 36 to 52 tooth), uses a milled aluminum spider design, and is lightweight. He notes it is a good compromise for cheap gravel builds or commuters, but does not provide detailed testing or strong endorsement.