- Location
- Somewhere wet & hilly in NW England.
Been messing about with my bike all week trying to stop a noise from down below. Initially thought it was wheels.
BB is FSA Megaexo AL-86 with FSA Gossamer Pro crankset.
When I pedal hard eg uphill and out of saddle there is what can only be described as a sharp crack sound - as the pedal (either side) hits it's low point. It is not a really load noise but is enough to irritate the living daylights out of me.
So - pedals off and threads greased.
Chainring bolts removed and regreased.
Removed crankset - all very clean. Cleaned everything anyway to be on safe side. Greased obvious bits.
Reinstalled to correct torque (NDS crank bolts x 2 and preload 'nut').
Still does it.
Basically it goes like this.
LH pedal in down position - apply sharp load and crack. Apply sharp load again and no crack!
Wander around to RH pedal and apply sharp load and crack. Apply sharp load again and no crack.
Repeat ad-nauseum.
***
As the BB is push fit I guess it is a dealer job.
Is it likely to be new bearings required? Or just get the things out and clean where they sit inside the frame?
NB: I have even had the water bottle cage bolts out, FD loosened, seat post loosened, headset & bars loosened in case it was something apparently unrelated to the BB area. All to no avail.
BB is FSA Megaexo AL-86 with FSA Gossamer Pro crankset.
When I pedal hard eg uphill and out of saddle there is what can only be described as a sharp crack sound - as the pedal (either side) hits it's low point. It is not a really load noise but is enough to irritate the living daylights out of me.
So - pedals off and threads greased.
Chainring bolts removed and regreased.
Removed crankset - all very clean. Cleaned everything anyway to be on safe side. Greased obvious bits.
Reinstalled to correct torque (NDS crank bolts x 2 and preload 'nut').
Still does it.
Basically it goes like this.
LH pedal in down position - apply sharp load and crack. Apply sharp load again and no crack!
Wander around to RH pedal and apply sharp load and crack. Apply sharp load again and no crack.
Repeat ad-nauseum.
***
As the BB is push fit I guess it is a dealer job.
Is it likely to be new bearings required? Or just get the things out and clean where they sit inside the frame?
NB: I have even had the water bottle cage bolts out, FD loosened, seat post loosened, headset & bars loosened in case it was something apparently unrelated to the BB area. All to no avail.