Technical & Reference Section > Tech and Restoration

BB bearings?

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level:
Hey guys, I've got a creaking on hard pedaling which I assume is the bottom bracket bearings, the bb had a far bit of play when I recieved the bike, but I cleaned it up, re greased and adjusted, it's still there tho. So I guess I need new bearings, I think they mite be American but would you guys know? It's a 96 diamondback venom pro.

Cheers guys

J

TwoBobRob:
One or three piece crank?

Open or sealed bearings?

kuwahero:
If its an Aluminium frame there's a high chance it might be the frame.

They can develop creaks and tings over time. Try replacing bb first then you will know

Replaced two bb's in my mates 90's floval flyer and still has the same issue.

level:
Sorry,

It's a 3 piece crank, the bearings are in a cage and the seat they sit against comes out too. There is also no play in the bb.   I think its CR-MO but not really looked into the bike too much.  But, I've just remembered that one pedal has shot bearings, proper shot! Maybe this could be it?

Cheers guys.

TwoBobRob:
Most commonly on 3 piece cranks, it's the crank arms themselves. Pop em off, clean inside, all hardware and the axle itself  spotless and reassemble with copper grease on everything - axle, inside arms and all bolts.

This may sound daft, but you often feel a creak. Get you hands on it and start twisting and pushing, whatever. Might show summat  :daumenhoch:

Sort them pedals out anyway, so much nicer when they run smooth.

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