Hello from the States. I have a 2023 CB650 that I also put handlebar risers on, same as yours. However, only after about a few weeks with it on, I ended up removing it due to a more upper body/chest aching I didnt have prior to having it on. Before install, I had just gone on a 2hr trip and had no issues aside from the usual hand cramping and butt numbing lol. After install, after a few days I noticed some weird upper body ache I didnt have before. I rode almost everyday and It wasnt going away. It might or might not be related to the risers, but I ended up removing mine with also the reason of end to end turning felt off, and overall riding being able to flick the bike side to side seem off. Again, maybe all psychological but I removed mine and now I love riding the bike again like I did. Awesome bike you have. Im looking to upgrade my exhaust (aftermarket) as my next 'mod'. Stay safe my friend.
Thank u for sharing your experiences. Actually my purpose for this is long ride with backride thinking that would give me additional relaxing ride. I rode it for 3hrs with backride and no issue with me so far hehe…but I will just monitor my self with this recent modification n hoping it would not give me the things u experienced😊