After 3,000km of building a new bike, I will accept the click from my Ultra Torque BB86 as music Campy provides at no extra charge.
When I built the bike, I had version 196 of the new 2015 Super Record Ultra Torque crank set and looking at the design during assembly, all I could say is Campy, WTF. Did you employ some new Engineers fresh out of college, with no practical experience and let them loose on AutoCad?
With an automotive (Mercedes) design background and these days industrial, if we had to fit something like this in a 5hp plus motor, with a loose slip fit of the bearing outer race cup, into its housing, it would self destruct in a few hours.
Anyways, the shims, the pre-load washer, the Rouge Mechanic, nothing will help for long, we just have to learn to live with this until Campy thins our wallet with something new.
To prove to myself I am on the right track, with the initial design analysis, when the click started around 2,000km, I removed the crank and lubed the mating surface between the outer bearing race cup and the inner surface of the frame press in cup.(Bearing housing) I did NOTHING else. I used an anti galling compound from Loctite, called Copper Slip, which has graphite as well as copper in a lubricant and everything was dead quiet. It lasted 1,000km and is back.
As the outer bearing race is not a press fit in the frame cup (bearing housing), there will always be movement. It is not lateral movement. It is micro movement, including precession, lateral and radial. Once the lubricant is squeezed out between the mating surfaces, we have galling, or fretting. This is what causes my click.
In industrial high power applications, once we experience wear between the bearing housing and the outer race cup, we will pick it up with vibration analysis. Once it becomes audible, it will self destruct shortly afterwards with a catastrophic failure. On a bicycle, with a mere 1/2hp motor, (my legs) Campy can get away with this, besides the noise.
Just to make sure I have dotted the I's and T's, my click is not between the mating surface of the frame cup and frame housing, this being a common problem. On the Colnago C60 the cups do not press into the carbon frame. Also, I posted this on another forum and got a Campy die hard with a different opinion highly offended. Hope there is no repeat.
Happy clicking. It is possible that this thing turns the volume down by itself, after a certain amount of galling has taken place. In the mean time I will forgive Campy for the Cult Ceramic bearings and a crank that spins free like no other.
When I built the bike, I had version 196 of the new 2015 Super Record Ultra Torque crank set and looking at the design during assembly, all I could say is Campy, WTF. Did you employ some new Engineers fresh out of college, with no practical experience and let them loose on AutoCad?
With an automotive (Mercedes) design background and these days industrial, if we had to fit something like this in a 5hp plus motor, with a loose slip fit of the bearing outer race cup, into its housing, it would self destruct in a few hours.
Anyways, the shims, the pre-load washer, the Rouge Mechanic, nothing will help for long, we just have to learn to live with this until Campy thins our wallet with something new.
To prove to myself I am on the right track, with the initial design analysis, when the click started around 2,000km, I removed the crank and lubed the mating surface between the outer bearing race cup and the inner surface of the frame press in cup.(Bearing housing) I did NOTHING else. I used an anti galling compound from Loctite, called Copper Slip, which has graphite as well as copper in a lubricant and everything was dead quiet. It lasted 1,000km and is back.
As the outer bearing race is not a press fit in the frame cup (bearing housing), there will always be movement. It is not lateral movement. It is micro movement, including precession, lateral and radial. Once the lubricant is squeezed out between the mating surfaces, we have galling, or fretting. This is what causes my click.
In industrial high power applications, once we experience wear between the bearing housing and the outer race cup, we will pick it up with vibration analysis. Once it becomes audible, it will self destruct shortly afterwards with a catastrophic failure. On a bicycle, with a mere 1/2hp motor, (my legs) Campy can get away with this, besides the noise.
Just to make sure I have dotted the I's and T's, my click is not between the mating surface of the frame cup and frame housing, this being a common problem. On the Colnago C60 the cups do not press into the carbon frame. Also, I posted this on another forum and got a Campy die hard with a different opinion highly offended. Hope there is no repeat.
Happy clicking. It is possible that this thing turns the volume down by itself, after a certain amount of galling has taken place. In the mean time I will forgive Campy for the Cult Ceramic bearings and a crank that spins free like no other.