When in the largest rear cog shifting from middle to big front ring gets stuck (i know this is cross chaining but im selling the bike to)
Are my chain rings work out as the old chain was worn past 1%. Should I replace front and middle ring or just the front?
Thanks!!
by Summerfa11
2 Comments
Those rings look like they still have a lot of life left based on their profile, but I can’t say that with 100% confidence since their dirtiness obscures the view.
Looks fine to me! front chainrings are not typically the issue, your smallest cog in the rear might be a different story as there is a lot more concentrated force on the smaller rings. Also bear in mind the front chain rings can be asymmetrical or even eliptical, so the teeth change shape and height as you go around the cog. I believe this is all to help with engagement, power transmission, and shifting