Worried about noise on new bike.

[sarahale]

I bought a voodoo hoodoo about a week ago. My mate adjusted all the gears yesterday because it wasn't set up properly.

Today I took it for a flat off rode ride. On easy ground eg paths. it made no noise and was perfect.

On rougher ground where I was clearly having to pedal harder it was making a random clonking/clicking noise when the pedals went round, almost like they were grinding or getting resistance from something inside the bike.

Just wondered if anyone had any ideas. Sorry for the lack of technical terms? I really don't think the noise was coming from the gears sounded more like the bottom bracket area?

Also one more point. The toggle that adjusts the preload isn't moving, so I will have to take it back and see what they say about that. Any ideas what's wrong with that.

Cheers for any help, much appreciated

 

[simon.r]

Could be chainslap (the chain hitting the chain stay) if it's only on rough ground?

 

[sarahale]

Not that rough sadly. And its a constant noise not every now and then as I think chain slap only happens over big bumps etc

 

[MikeW-71]

Perhaps the chain wanting to jump up or down a sprocket, if that's what it is, a cable tension adjustment should sort it.

If it's from the BB and the bike is brand new, could be a faulty bearing. Back to the shop.

 

[jnrmczip]

Check what gears you are in if you are riding the big ring on front and small ring on back or small front large back sometimes it makes a noise on mine but other than that I'm stuck

 

[goody]

Chain rubbing on front derailleur. Next time it does it stop and look to see how close the chain is to one side of the derailleur try to use the shifter to give a bit more clearance then carry on if the noise has gone then don't worry about it.

 

[sarahale]

Okay thanks for all the idea, is really helpful. It seems to be happening when I am on big ring front and 6/7 back (out of 9)

 

[Andy_R]

OOOOO.....random noises from bike...bike's knackered. I'll have it off you for the cost of courier though

 

[Andy_R]

One day, someone will fall for that, but I'm not holding out much hope, and it probably will be a knackered bike!

 

[wam68]

Your description sounds like the BB but with bikes it's usually the last place you look that's the source of the prob.

 

[Andy_R]

Okay thanks for all the idea, is really helpful. It seems to be happening when I am on big ring front and 6/7 back (out of 9)

As @goody said, it's probably chain rub on the front derailleur. Get your mate to move the High screw out a bit more on the FD so the chain isn't rubbing.

 

[Crackle]

Rubbing noise front dérailleur, clicking/rattle rear dérailleur, clonk/ping chain slap. Can't see it being the BB, could also be a pedal.

 

[Andy_R]

Rubbing noise front dérailleur, clicking/rattle rear dérailleur, clonk/ping chain slap. Can't see it being the BB, could also be a pedal.

ooo @Crackle's gone all continental and put accents on his vowels.....

 

[Cyclist33]

I've got something similar on my new budget MTB.

It isn't chain or cog related as far as I can tell. On a previous bike, same turned out to be the pedals. I have yet to try swapping them.

The creaks happen under pedalling load but also when I bounce on the saddle while not pedalling. Which leads me to think it might be in the bottom bracket and also seat post or possibly one or the other.

Bike is due it's free check up but I actually can't afford the flimsy train fare to Crewe!

Don't expect Halfords to solve your problem if that's where you take it in.