how to firmly attach handlebar on smaller tube?

JonB

Zen MBB Master
Hi

how to firmly attach handlebar on smaller tube? The telescopic front tube does not have a constant diameter. It is larger near the bottom bracket than at the end where they slide into each other and where the clamp is. This means that the arm that holds the handlebar will not attach at all near the clamp, so i can not move the handlebar further back which i want so i can get a more laid back position.

I have tought about using some rubber, but i am afraid that it will slide :-(

What other ideas do you have?
 
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