My Hammer 1 belt snapped about 6 weeks ago. Generic replacement fitted (as I couldn’t find an EU supplier), and all going well up until this mornings “Beech”. A knocking sound started. Stopped immediately, and it appears that the belt is stretched already, so the teeth aren’t meshing correctly at one point on the belt.
I’m not concerned by knocking sound, as that seems to be where it releases by the fly wheel. But it’s not meshing through the resistance unit either. I’m on a recovery week, so will switch to my hybrid rollers for these workouts, but I was hoping to race, in SIM mode, on zwift on Friday. A replacement belt won’t be here by then. So would I be risking any long term damage doing that race?
It was a generic belt, as I was unable to source an official one here in Ireland, or UK, or seemingly in the EU. I’m a bit disappointed with the longevity, given the official one lasted years with no maintenance, and this one barely 6 weeks!
When I checked the belt tensioner, it was quite slack - an inch rather than the 3/4 inch. Would/ could this have contributed to the belt issue this time? Or some fitting fail on the original swap?!