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Cassette spacer! SRAM PG950 9 speed

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Cassette spacer! SRAM PG950 9 speed

Old 06-17-21, 07:29 AM
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Plainsman
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Cassette spacer! SRAM PG950 9 speed

Hi all, trying to figure this out. I have a wheelset that came from a 2009 Specialized Allez with 8 speed Sora. I am repurposing that wheelset for a 9 speed Cannondale flat bar road/fitness bike. I have a new SRAm PG950 11-34, and I’m just trying to figure out what spacer is needed. I’m assuming I have an 8/9 hub. TIA!
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Old 06-17-21, 07:42 AM
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ridelikeaturtle
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If I was you, I'd get a 1.85mm and a 1mm spacer, just to have them on hand. Last time I put an 8 speed Shimano cassette on a Zonda wheel (that was running a 10 speed cassette), it needed the 1.85mm spacer w/the little indents to cover the rivets on the back of the cassette.

I've run into cases of needing them, or not needing them, depending on Mavic, Campy, Shimano, SRAM... 8, 9, 10, 11 speed... try your local bike shop, they may just give you a couple of each for a fiver (or even free).
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Old 06-17-21, 07:54 AM
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You will need to use whichever spacer or combination causes the cassette to stand 1 or 2 mm proud of the freehub, so that the lock ring clamps against the cassette and not the end of the freehub. If the rivets (or screws) at the back of the cassette cause issues you can just grind them off or remove them, they are not needed after installation and only serve to hold the assembly together during handling.
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Old 06-17-21, 08:08 AM
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alcjphil
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If an 8 speed cassette fits on the hub without spacers, so will a 9 speed cassette
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Old 06-17-21, 10:03 AM
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Originally Posted by alcjphil
If an 8 speed cassette fits on the hub without spacers, so will a 9 speed cassette
^This^ No spacer is needed w/ that cassette.
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Old 06-17-21, 03:51 PM
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Originally Posted by cxwrench
^This^ No spacer is needed w/ that cassette.
I will add this: If the 8 speed cassette required a spacer, the 9 speed cassette will require the same spacer
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