I had the same thing. Took it to my local bike shop. They said it was a loose bottom bracket. They charged me £5 to fix it.
Would love to have fixed it myself but I believe it requires tools I don't own. :(
Having said that I do very much enjoy taking my bike to professionals to get it fixed - I feel a lot happier hacking along busy roads knowing that if it falls apart, it's not because of something stupid I've done! My bike repairs consist of too much guesswork.
I had the same thing. Took it to my local bike shop. They said it was a loose bottom bracket. They charged me £5 to fix it.
Would love to have fixed it myself but I believe it requires tools I don't own. :(
Having said that I do very much enjoy taking my bike to professionals to get it fixed - I feel a lot happier hacking along busy roads knowing that if it falls apart, it's not because of something stupid I've done! My bike repairs consist of too much guesswork.