
Broken front sprocket / crankcase cover solved
For newbies like myself…I’ve got 2009 and when down shifting to a stop sign I heard big clunk and saw this cover had broke. After some googling I saw that it has happened to other bikes, with no clear cause. ChatGPT suggested I replace the chain and sprockets. Before doing so I decided to measure my chain slack and it was 60mm, instead of the 40-45mm spec.
For a long while now I would hear a bit of clunk when down shifting and slapping when slowing down. I moved the sprocket cam one click and into spec and I’m quite certain the loose chain is what caused it to break. The bike also feels much more responsive, smooth, and fun to ride. So yeah, here’s a psa to check your chain slack and some info for anyone that has a broken front sprocket cover in the future.