Hello All,

Tonight I was riding home from work and I noticed that the rear derailleur suddenly became very difficult to shift. After a couple of minutes there was a snap and the rear derailleur cable broke inside the shifter housing.

Now, I don't know if this is a common thing or not, so I'm not sure if it's a faulty cable, or it's just normal wear and tear. I bought the bike 6 months ago and have ridden it for nearly 4200km. The rear derailleur is Sora, and the shifter is Deore, if that's important.

It's not a big thing to me as it's a pretty simple thing to replace (I think) but I just want to know in future if I'll need to replace the cable regularly to prevent this kind of thing from happening again.

Thanks in advance.