Scored steerer tube

Having just removed my forks to replace the headset I have found that the steerer tube is scored, less than 0.5mm deep and runs around the back 1/3rd of the tube circumference.

What do you reckon, ok to ride or asking for extensive dental work…?

What material/thickness is the tube and what fork and type of riding ?

Any idea what has caused it ?

It’s an on-one carbon rigid fork, looks like 2mm aluminium. Riding is fairly tame, with the odd rocky descent/set of steps. Caused by a loose headset…

Probably be alright

What kind of headset were you running?

Chris King headsets are known to damage steerer tubes due to the design used to circumvent the Aheadset patent.

Not a king, just an old smoothie light that needed replacing about 6 months ago!

Cheers nickc.

sootyandjim – Member

What kind of headset were you running?

Chris King headsets are known to damage steerer tubes due to the design used to circumvent the Aheadset patent.

B o l l o x.

You mean they are rumoured to, and as this demonstrates other poorly fitted headsets may damage a steerer as well, which would rather suggest that King headsets that have damaged steerers have done so because they have not been fitted correctly. I’ve had my King on a range of forks, most recently a 160 mm single crown job and I’ve had no such problems.

….

my on-one did that too. i’m still running the forks!

Excellent, an example of a poorly fitted CK headset!

Actually King headsets are well known, really well known for fcking your steerer tube. I certainly will not be buying one again, overpriced and over hyped.

Well, I don’t seem to have any problems with mine, and given my record for bodges and cack-handedness, I’d had thought i’d be a prime candidate. I’ve two that were rammed in with wood, threaded bar and washers….

There is a school of thought that says it’s not the King heatset but the tollerance on the steerer tube. I hear Marzocchi are particularly bad with King headsets. Is it this year or next when something chnges with the patent on A-headsets and King can make the tapered ring like everyone else?