I've kept it mostly original. The shifters are about the only change I made. It came originally equipped with grip shifters. I ditched those for some cheapo thumb shifters & some cushy black foam grips. It's got 700 x 38 tires that can handle rides on the beach (at low tide when the sand is packed hard). I'm not a big fan of grip shifters because of the hard rubber hand grips. My 62 year old hands need something soft to hang onto. I also put a cheap vinyl saddle with steel springs on it. So, it's a pretty smooth ride.