I just found this little circle on the downtube of my Systemsix, its nowhere near the crank or the chain but looks like something has been rubbing it through.
super confused, any suggestions what might have caused it?
Its really smooth so I don't think its a big stonechip
if you've taken your bike anywhere by other transportation, it only takes an hour of motor induced vibration to make something as innocuous as a storage box or rack clip to chafe the surface
I just found this little circle on the downtube of my Systemsix, its nowhere near the crank or the chain but looks like something has been rubbing it through.
super confused, any suggestions what might have caused it?
Its really smooth so I don't think its a big stonechip
area also seems to be oily all the time.