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New one for me, fixing loose freewheel on girlfriends bike. Turns out it's a freehub, but a proprietary suntour one. Uses the same teeth profile as Shimano but is shorter and 7 speed only; 8-10 speed cassettes are too long by almost 2 cogs.
Freehub is unserviceable but detaches from wheel with a 10mm Allen key which I had to go buy. Soaked in degreaser then in motor oil, it's gtg. Just hope the cassette doesn't wear out any time soon.
