grinding noise

I'm feeling a 'grinding' while pedaling and hearing a slight noise.
I'm guessing its something to do the with bottom bracket as the wheels spin freely and its not coming from the drive. I'm guessing there are bearings in there somewhere, could that be it? Hard fix?

camaghead

The BB bearings are a likely cause. It could however be the pedals, your saddle or seat post. What type of Bb do you have and how much mileage is on it?

cheers - no idea on the milage; I just use the bike for commuting and shortish spins for the last couple of years.

The noise only happens when I'm actively pedaling, I was freewheeling round the carpark today and it was perfect, however once the pedals were moving the noise / feeling came back.

Is it big job to fix / change BB ball bearings?

Darkglasses

Deleted User wrote: »

cheers - no idea on the milage; I just use the bike for commuting and shortish spins for the last couple of years.

The noise only happens when I'm actively pedaling, I was freewheeling round the carpark today and it was perfect, however once the pedals were moving the noise / feeling came back.

Is it big job to fix / change BB ball bearings?

Definitely sounds like the bottom bracket.

It's not the easiest job to yourself. Not least because there are a number of different styles of bottom bracket and bearings out there, no industry standard. Also you do need a couple of unusual tools to replace the bottom bracket, so I'd take it to a bike shop for work.

If it needs full replacement the part will probably cost 20-30ish euro? (not exactly sure as I've never bought one from a shop). Labour probably same again? Someone else on here would probably know better than me regarding cost.

cython

Darkglasses wrote: »

Definitely sounds like the bottom bracket.

It's not the easiest job to yourself. Not least because there are a number of different styles of bottom bracket and bearings out there, no industry standard. Also you do need a couple of unusual tools to replace the bottom bracket, so I'd take it to a bike shop for work.

If it needs full replacement the part will probably cost 20-30ish euro? (not exactly sure as I've never bought one from a shop). Labour probably same again? Someone else on here would probably know better than me regarding cost.

I had my bike in for a service with HolyBoy in BeeCycles a few months ago and he determined the BB was knackered and only charged me 30 quid (on top of the basic service price) including labour to replace it (Hollowtech II style, so may or may not be directly relevant to the OP, but the main difference would be the cost in parts at that point).

NeedMoreGears

Just recently quoted 40-45 for replacement of press-fit style. 20-25 for the part and the same for labour.

Briando

Thats sounds like a reasonable quote.

ford2600

For a bottom bracket that's on there for a few years, best to bring to shop, especially if first time attempting it.
Square taper and external bearing easy to replace once they are not seized.
Hollowtech 2 are cheap to replace, tiagra as cheap as €10 with some sites.
I replace at end of year gone or not. 105up just look lighter not more durable.

Thanks guys.

I used to live near BeeCycles and they were great. I tried a certain city centre place recently and I will not be going back. Is it ok to ride the bike in the interim?

GTDolanator

Deleted User wrote: »

Thanks guys.

I used to live near BeeCycles and they were great. I tried a certain city centre place recently and I will not be going back. Is it ok to ride the bike in the interim?

g'wan spill the beans on who you wont be going back too

camaghead

I'd say yes you could use it in the interim. The noise will get progressively worse until failure but best to get it looked at as soon as you can.