Wonky Spider arm?

Evening.

My bike developed a strange clicking sound when putting pressure on the driveside pedal, checked the pedals, they're fine, then having turned the bike upside down and spinning the pedals (with the chain off) I can see a side to side wiggle of the chainring when looking from above. Having removed the chainring and using an allen key to check the clearance of the spider I can see that one of the spider arms comes closer to the frame than the others. So im guessing this is that cause of the problem as the bb is running smoothly but how would one arm become bent as this has only developed in the last week or so? anything I can do to remedy this apart from a new crankset?

bb - sugino
crankset- sugino messenger

Thanks!

Matt

If one of the arms is bent, then I guess you have the root of the problem. A friend of mine's bike was backed into by a lorry whilst chained up in the street and it got pretty mashed. I guess someone could have backed into yours on a lesser scale. If the arm is definitely bent, then I think it is new crank time. It might be worth having a good look at the chainring too, as it's also likely to be screwed.