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Old 08-10-17, 02:32 PM   #1
dlev
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new cassette compatibility

I currently have a Shimano SLX derailluer (9 speed) with a Shimano 11-32T 9 speed cassette. Would there be any problem changing out the cassette for a Shimano HG400 12-36T 9 speed cassette? Thanks.
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Old 08-10-17, 03:43 PM   #2
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There's a possible problem with your rear derailer not being able to handle the largest cog. Changing the cassette would probably require you to adjust the B-screw. If you happen to know the exact model number of the rder, someone here might be able to help you; otherwise, you pretty much try it and see if it works.
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Old 08-10-17, 04:05 PM   #3
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new cassette compatibility

I currently have a Shimano SLX derailluer (9 speed) with a Shimano 11-32T 9 speed cassette. Would there be any problem changing out the cassette for a Shimano HG400 12-36T 9 speed cassette? Thanks.
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Old 08-10-17, 04:20 PM   #4
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I'm seeing notes that the Shimano SLX M675 Shadow+ 10 Speed has the specs:

Rear Sprocket Sizes: 11T - 36T
Total Capacity: 35T

So, what chainrings do you have?

To be within Shimano's specs, you would have to have about a 10T difference between the largest chainring and smallest chainring.

Some notes are that specs can be slightly conservative. However, going over the max chain wrap, and it is a bit more tricky to adjust the chain length. It should be long enough to fit Big/Big rings, but can be loose or drag over itself a bit with the small/small combo. You have to decide if that is acceptable.
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Old 08-10-17, 04:25 PM   #5
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Oops, the M662 SLX shows:

Maximum sprocket: 34T

Chain Wrap: 35T (GS) or 45T (SGS)

So, it depends a bit on which derailleur you have. The SGS model has better chain wrap. The 34T is smaller than your target, but may be slightly conservative.
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Old 08-10-17, 05:00 PM   #6
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This should answer your question, assuming it is the same RD.

http://bike.shimano.com/media/techdo...9830616243.pdf
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Old 08-10-17, 05:16 PM   #7
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You may need a few more links of chain.
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