I'm looking to upgrade the front derailleur from a stock DNP-brand (the ones every big-box BSO has) to a nicer Shimano. The goal is to reduce play and flex while switching, allowing a tighter adjustment and crisper shifting on the front chainrings.
I think I want the Shimano Deore line, durable and stiff but nothing fancy, except that the full Deore groupset is based on a 10-speed rear cassette, while the bike currently has a 7-speed cassette and I'm not in much hurry to upgrade the full groupset (the only real problems I'm having with the bike are centered around this front mech; the other components, while by no means high-end, are getting their job done).
So, will a Deore FD-M610 work with the wider chain of a 3x7, 42-32-24 setup, or do I need to be looking elsewhere? I don't have exact specs on the chain at the moment, so I assume it would be the "standard" width for a 7/8-speed cassette which is in the 9/32" range.