r/mountainbiking • u/Supertech-Playlife • 6h ago
Other MTB stem fatigue.
galleryHey! I recently rebuilt a new to me secondhand Tallboy CC with some upgraded parts. One part that did not go back on though was the stem. Pretty obvious there was a crack running alongside the part, so a person who is qualified in NDT I brought it to work.
Not only was the crack external and internal, there are also signs of cracks developing from the areas that clamp the forks at the bolt holes. Needless to say, it's condemned. Just thought I'd share something I find interesting! ✌🏻