I'm looking at a Race Face Ride Oe crankset for my Trek 3500 disc. Yes, I have Shimano Tourney, the bottom line Shimano derailleurs, 7 speed only. But, the description for the crankset says 9/10 speed only. 7, 8, and 9 speed have 3/32 chains. Am I able to use it? I might upgrade my rear derailleur soon anyways. The product can be shown on any internet bike shop or Google Images. Thank you!