Both of my bikes are in good shape, recently tuned and everything is working smoothly. So of course now the urge comes to change out the wheelset on one of my bikes and switch to a single chainring on the other one.
There's nothing wrong with the current wheelset. According to Jamis they are 700c, 32 spoke, Alex ACE18 alloy double-wall eyeletted rims with Shimano Road 2200 hubs and 14g stainless steel spokes. I've been eyeing the Mavic/Open Pro rims at Performance Bike. Similarly the commuter bike doesn't really need fewer chainrings aside from the fact that I never use two of them. It's not like the weight savings will be significant on a Walmart frame (with entirely replaced components).
But I think I'm going to have to put a stop to this. Right now I need both bikes in good working order. Maybe once winter comes I'll start thinking about some type of winter beater I could trash.
So when do you stop tinkering with your bikes?