As far as durability, the bike has held up great so far. I check the spokes every ride, mainly out of habit and change the air filter religiously for cheap insurance. The rear chain guide wore out at 20 hours and I am not a huge fan of the stock O-ring chain for motocross (It’s heavy and causes a lot of drag compared to a normal chain). Besides that, I have changed the engine oil three times and one went through one Dunlop MX32 rear tire. Nothing out of character for a bike that’s been ridden hard by a handful of different pro test riders. The bike has a good engine character that is fast, yet smooth and easy to ride. My only real complaint on the Suzuki is the rigid frame feeling and front fork. The next mods for the bike will be sending the suspension out to be re-valved, to see if we can fix some of these issues as well as bolting on an exhaust. Overall, the 2016 Suzuki RM-Z450 is a good bike, but stay tuned to see if we can make it even better.