cheap solution to adapt a D11 cutter on a Cyclus tool reamer

[sebaudet]

Since I began my first MAX frame I was not happy with the link between TT and HT. "Normal" HT is 36mm OD and MAX TT is greater so I had to press it : beurk !
So I searched a bigger HT. As I like simple answers I would like to keep a non-intergrated headset : the pegoretti D11 headtube is THE answer.
Only one problem, the specific cutter is working with expensive park-tool reamer (CK cutter) or Campy reamer... For my little production the investment was too big but with pics and details given by M. Pegoretti I decided to buy the cutter and try to adapt it. Perhaps you have the same reticence to change your tool for a new standard so let me show some pics of the adaptation : the shim is made with mid-steel, it's perfectly adjusted to have no clearance between the shim and the cutter in order to avoid any extra vibration...
P1060216.JPGP1060217.JPGP1060218.JPG

[Mark Kelly]

Nice solution.

Are the carbide teeth on the cutter the standard for this tool?

[sebaudet]

I think they are

[NBC]

here's a question, why not 1 1/4" and use a chris king devolution instead ? more cutters available etc etc ?

also with the taper steerer style that is now more common, you could use a 1 1/4" - 1 1/8" taper steerer if you wished ?

forgive me for asking that, but if it was mine, i'd feel more comfortable using something that's more of an established standard

interested to hear your views, and other builders too

thanks

nathan

[sebaudet]

Unfortunately the industry is trying to dictate his standard ! unfortunately because in my opinion for this example it's not the best solution for steel frames. The integrated headsets are good for carbon frames, but for steel frames I feel better with replacable cups, because the life of the frame can be long and with differents headsets (for the same reason I prefer BSA to new standards like BB30 ! Secondly it's very easy to prepare a frame for a non integrated headset, just reaming and hop ! for integrated you have to check the clearance for a perfect fit of the bearings it's more difficult i think. And finally I don't want change something working perfectly, the good evolution is a necessary evolution... And sorry perhaps not the best reason but integrated steel frames look not very nice...

[NBC]

i'm not sure what OD the D11 headtube is, but 1 1/4" headtube would be about 49mm, do you not find it awkward only being able to currently get cutters and headsets from dario ?

i'm really not trying to bash his standard, but it just seems a little illogical to me, i don't really see the chris king devolution headset as an adaptor really, as it's all manufactured to work together, and atleast for the forseeable, they're going to be significantly more available surely ?

after all, a devolution headset is just a standard nothreadset, with a reducing top cap and crown race, really simple in design too !

nathan

[sebaudet]

I have no more argument but for me D11is a good solution.... (OD is approximately 41mm)

[NBC]

sorry that was a typo, the head tube should be 39mm not 49mm

what's the ID of the D11 ?

nathan

[sebaudet]

ID is just below 38mm...

[Ross D]

What is the current price and availability / supplier for the head set ,
head tube and reamer ?
Regards
Ross

[Eric Estlund]

Pegoretti may be willing to supply both the tube and HS, as may GITA in the US.

It's an interesting tooling solution. D11 (or large HT's) are not needed for the MAX TT if rotated 90*. These are from the era of 31.8 head tubes- the MAX 39x26 oval can fit on a much smaller head tube.

[Ross D]

Is there an update on suppliers for the D11 head
set and Columbus head tube ?

[e-RICHIE]

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