Hello to all
I've recently acquired an FP2 for my eldest, after his original Pinarello shattered underneath his backside whilst riding. We spent a nice bit of time building it up, and all seemed to go well following the build finish (apart from discovering that the rear brake bridge is so damn thick that normal Chorus rear brakes don't fit, as the bolt/nut combo isn't nearly long enough!). A brand new Pinarello carbon fork steerer expander top cap was fitted and adjusted until "headset rock" was removed. It all seemed fine.
It's been ridden twice, and I was checking it last night to see that all was still well when I noticed some very slight movement in the headset / fork area.
The problem is definitely with the forks, everso slightly rocking backwards and forwards within the headtube. If I've grabbed a handful of front brake and gently rocked the bike backwards and forwards, you can't feel it. However, if I lean right down and rest my chest on the handlebars whilst rocking the bike backwards and forwards, I can feel some slight "knocking". After a few minutes of ensuring that the front brake wasn't loose in the fork, I could feel ever so slight movement where the head of the fork is actually "moving" within the headtube. With my fingers covering the gap between the top of the fork and bottom of the heatube (it's an integrated headset, so really no gap at all), I can feel the knock / movement of the fork crown. I'm confused.
I've obviously tightened the top cap, but this is now at a stage where it's really pretty tight to do up even further. I'm a retro guy, and don't really like aheadset's anyway, but I certainly don't feel like I want to tighten the expander plug any further as I don't want to damage the carbon steerer! There is no restriction in lateral movement as you turn the bars, which turn freely and easily.
Therefore, I'm not sure what to do next? I'm reluctant to really chance overtightening the expander plug in the steerer. Is the most likely explanation that the bearings are just shagged and require replacement (most likely the bottom one which obviously suffers most of the usage stress) and this is bearing wear I'm feeling? Or could there be another explanation?
The only slight issue in my mind is that this was a used frame, and I'd hate to think that I've ended up with something damaged, but wanted to try and get to the bottom of this asap in case it is.
Any guidance/suggestions would be very much appreciated. Cheers guys...
I've recently acquired an FP2 for my eldest, after his original Pinarello shattered underneath his backside whilst riding. We spent a nice bit of time building it up, and all seemed to go well following the build finish (apart from discovering that the rear brake bridge is so damn thick that normal Chorus rear brakes don't fit, as the bolt/nut combo isn't nearly long enough!). A brand new Pinarello carbon fork steerer expander top cap was fitted and adjusted until "headset rock" was removed. It all seemed fine.
It's been ridden twice, and I was checking it last night to see that all was still well when I noticed some very slight movement in the headset / fork area.
The problem is definitely with the forks, everso slightly rocking backwards and forwards within the headtube. If I've grabbed a handful of front brake and gently rocked the bike backwards and forwards, you can't feel it. However, if I lean right down and rest my chest on the handlebars whilst rocking the bike backwards and forwards, I can feel some slight "knocking". After a few minutes of ensuring that the front brake wasn't loose in the fork, I could feel ever so slight movement where the head of the fork is actually "moving" within the headtube. With my fingers covering the gap between the top of the fork and bottom of the heatube (it's an integrated headset, so really no gap at all), I can feel the knock / movement of the fork crown. I'm confused.
I've obviously tightened the top cap, but this is now at a stage where it's really pretty tight to do up even further. I'm a retro guy, and don't really like aheadset's anyway, but I certainly don't feel like I want to tighten the expander plug any further as I don't want to damage the carbon steerer! There is no restriction in lateral movement as you turn the bars, which turn freely and easily.
Therefore, I'm not sure what to do next? I'm reluctant to really chance overtightening the expander plug in the steerer. Is the most likely explanation that the bearings are just shagged and require replacement (most likely the bottom one which obviously suffers most of the usage stress) and this is bearing wear I'm feeling? Or could there be another explanation?
The only slight issue in my mind is that this was a used frame, and I'd hate to think that I've ended up with something damaged, but wanted to try and get to the bottom of this asap in case it is.
Any guidance/suggestions would be very much appreciated. Cheers guys...