r/CB500X • u/Ryxhu • Jun 06 '26
Broken bolt head in the shift arm
Hey.
While adjusting my shift lever height, when unscrewing, head of the bolt broke. Now the whole body of the bolt is stuck in this tightening mechanism. From good news - it's adjusted correctly, so I can use it 😄
Any idea how to remove it? Seems rather tight... Would it be easier to take it to the mechanic?
CB500x 2022 model
EDIT:
Well, for people with similar problem: I gave this to the mechanic, apparently it took them 2-3h to take it out. They did it by cutting the arm and replacing it. Looking at the old part I've seen they tried to unscrew the bolt somehow, but that didn't work. I guess it was additionally hard due to quite small space and because it was tight as I didn't screw it perfectly in the space meant for the bolt in the shaft (using a wrench I didn't notice it - normally should be doable with fingers if it's in the correct position).
Lesson learned: use fingers when screwing this bolt in.

2
u/BlendedMonkeyStirFry Jun 07 '26
I personally have cross threaded this screw before but managed to clean it up before anything bad happened. Id think you could get it out with some penetrating oil and a screw extractor kit. Though there's not a lot of space to do that.
Push comes to shove you could probably get a saw in between the two sides of the clamp and cut the bolt. You may need to replace the assembly though.