I'm having a bit of an issue with my bike, and I was hoping someone could help me...
When I pedal, there's a loud clunk sound only on the left pedal. I can actually feel something move/shake/twitch on the pedal/under my left foot. It happens every full rotation of the left pedal without fail.
However, this only seems to happen when I put weight on the pedal. When I pedaled with only my right leg/pedal, there wasn't any clunking sound. When I turned the bike over (wheels in the air) and spun the bike's left pedal round with my hand, there wasn't any sound...
This doesn't seem to affect my ride in any way - it doesn't slow me down - but it's a bit unnerving... The bike is around 5 months old, and it's used for commuting, so mainly sticks to the road (it's a hybrid).
Has anyone else had the same issue? Or would anyone be able to advise me on what I should do?
I've applied lots of oil to it in an attempt to resolve the issue...