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Shimano Hyperglide cassette?(5 posts)

Shimano Hyperglide cassette?crestlinefarm
May 27, 2003 5:33 PM
I hate to be suspicious but....I bought a Shimano Hyperglide cassette from a friend. Is there a way to tell if the cogs are actual Shimano or if I got some other brand gears with a Hyperglide retaining ring? The individual cogs are marked S-U 12T, S-U 13T, S-U 14T and so on...while the retaining ring is marked Shimano Hyperglide. I thought the cogs were also marked HG or something telling.
Before I make an a$$ out of myself, I thought someone out there might be able to tell me what's up?
May 27, 2003 5:47 PM
Sure sound like uniglide numbers. Can you mount the cogs both ways? If so, they ain't hyperglide.
Inside out?crestlinefarm
May 27, 2003 8:31 PM
Do you mean "inside out"? like the smallest cogs near the spokes? I mounted it "right side out" tonight...
Would a Uniglide cassette work?
well, you COULD do that....Alexx
May 29, 2003 5:32 AM
but, I was referring to individual cogs, not the entire cassette. Still, that is a quick way to tell if the cogs are Uniglide (not likely, since the old uniglide stuff is over 10 years old now), but I wouldn't actually try to ride it that way.

To make a long story short, Hyperglide cogs fit only 1 way, uniglides can fit both ways. Uniglides can fit on a hyperglide carrier, but not the other way around.
Ahhh, Ultegra!crestlinefarm
May 27, 2003 9:39 PM
So the S-U means Shimano-Ultegra.
This great photo thanks to Branford Bike shows the Hyperglide lockring with SU on the cog.