lets outline the changes Suzuki has made since 2005.
It recently received 1-1/8" aluminum handlebars and 1-1/8" bar clamps.
Blue rims, a few years ago and then gold rims last year.
1998 someone pitched "drz400" to the bean counters and upper management.
1999 the engineers knocked out a couple prints and said "they'll never ride this thing long enough for the CS nut, stator bolts, starter bolts, or other stuff to fall off, lets skip loctite!"
2000 production started, nothing changes for 17 years (yes i'm speaking into the future) until around 2018 when CARB or some other government body forced an update of the fueling. as a side benefit, the tank is larger, stator puts out 350 watts instead of 200, and it gets direct injection (boooo) because that's how you lean it out in 2018. in 2019 people plug the direct injector hole and put a throttle body injector assembly off a 90's model chevy pickup's intake, and pick up 2 hp and smoother throttle response. in 2020 the drz is finally replaced by an electric bike with three moving parts between the throttle on the handlebars, the electric motor, and the front drive sprocket. batteries last for three days of constant usage, and tires have insta-spikes that come out for dirt traction. oh, and everything is led.