2018 Honda CTX700 DCT, 2015 Zero SR [sold :’-( ]
Let’s be clear: NO bike - not a single one - has a problem with randomly falling over while in motion. Yes we should all practice, and avoid doing things that put us in more danger than we have to - but crashes don’t just happen to inexperienced, or experienced, riders doing dumb things........ I would personally avoid the crash bars. Yes, they offer your bike some protection. ...... it generally doesn't have any issues falling over while in motion unless you do something stupid, or have a mental lapse in judgement. .....and avoid driving faster than you should on very curvy roads in bad weather or with poor road surfaces.
Crashguards, like insurance, are for when bad things happen. Unlike insurance, the crashguards can (not will, but can) actually save you and your bike from serious injury/damage. Actually, they’re exactly like wearing a helmet - our helmets are to protect our head in case of an accident. They don’t prevent an accident and it’s not ok to be careless and have an accident just because you’re wearing one. Unlike a helmet, though, there’s no real downside to having crashguards. Helmets can be uncomfortable and hot and noisy and restrictive. The crashguards just sort of exist, and you probably won’t notice them while you’re riding, but you’ll be glad you have them if you need them.
One reason to not have them is cost. But again, like a helmet: the price can be high, but it can be much more expensive if you don’t have them.
The only real reason to not have them is if no one makes them for your model of bike - or if you don’t like the way your bike will look with them. At that point you’re making decisions based on personal aesthetics, and that’s ok. But not having them because you plan to be a good rider and not ever have an accident? That’s just naive.