BB problem... I think

Hello,

Ok so just been out on my bike, I stood up to pedal and it felt like may chain had come off for a spilt second, the whole drive chain slipped, but caught itself and could pedal, this happened whenever i exerted pressure on my right pedal, its just jumps. it happened 3 times in an hour ride, twice when standing to pedal and one when i was stopping.

worst explanation ever, what should I get looked at? its a new bike (2 months old), I do have a fixed cog on it, could that be loose and slipping?

thanks in advance

Alex

This normally indicates a worn rear sprocket (or possibly chain). But this is a new bike: how much have you used it?

The lock ring only comes into play when you are applying reverse thrust to the pedals. Likewise the sprocket should just tighten up under normal pedaling.