Question: Alpinestars USA Cro-Mega head tube exact diameter?

[Alex4Real]

Hello,

I have project to convert my Alpinestars USA Cro-Mega rigid fork to suspension fork.
As I know that this bike frame has 1 1/4 inches head tube.
My suspension fork will be 1 1/8 inches.
To compensate that difference in the standards, what I will do is to order via the local lathe man aluminium adapters for the new headset, which I purchased via ebay.

The question: Can, please somebody of you, who has that bike or frame in dissasembled state measure for me the exact inner diameter of the frame's headtube without headset cups? And also the outer diameter of the cups will be appreciated.

I attach picture for reference.

The bike is currently not with me that is why I cannot measure it by myself.

Thank you in advance.

Alex

 

[raidan73]

Why not just buy some ready made ones? These were the first ones I found but I'm sure they can be found cheaper http://www.evanscycles.com/products/whe ... GwodrH8CBg

 

[Rampage]

Re:

You can buy thd adapters at SJS Cycles to save someone making them.
Cane Creek list the headtube sizes / tolerances etc on their website. No point measuring, unless it's your exact frame.

 

[Alex4Real]

Thank you for the quick answers and the links.
I think I found what I needed on the Cane Creek site.

I prefer to produce those adapters locally in my country, because the price will be relatively very low compared with the online purchase solution from abroad.

BR,

Alex