Will the Deore 590 be ok ? Any other alternatives ?
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An 8 speed drive train will work with any 8 or 9 speed crankset. Chain width is the factor that affects compatibility but there is minimal difference between an 8 and 9 speed chain.
8,9 and 10 speed systems share the same free hub width so cogs on the cassette are spaced accordingly. The chain for these sets are all different widths to fit the rear cassette. 7 and 11 speed systems have different sized hubs.
It's an 8-speed cassette and the chainset is 9 speed, but it should work fine: http://www.bikeradar.com/forums/viewtopic.php?p=15561220