seen these aluminum single speed cruisers at wal-mart for under $100 and i have heard good things about them. the lightweight aluminum frame gets my interest as well as the nice paint jub it comes with. anyone out there have one of these la jollas or can tell me anything they'd like to share about them? looks like they come with a alloy 3piece crank too. wonder if the arms and chainring can be swapped out for a shimano replacement? most people i have spoke to loe this bike but not the grips. any thoughts?