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Re: Vision's new aerobar and extension (Metron TFA) [Vision-USA]
Vision-USA wrote:
Back to that minimum 29mm steer tube clamp surface…You will need a uncut fork-steer tube from the factory. (This is assuming the SS forks are pre-cut for each size and they ship as is.) The SS integrated stem has a shallow height clamp (27.5mm) with a minimum surface of 26.5mm needed on their 1-1/8th steer tube. Now 2.5mm of steer clamp surface area might not sound like a lot to some, but to us that is the difference between having a secure component or making a unexpected trip to the ER.


Hi all,

Got a package with the TFA Aeroabar and I'm really impressed. So far I used a 3T Brezza II LTD aerobar, but the TFA looks even more filigree and I will be able to realize a better cable routing. At the moment I'm thinking about how to integrate my SRAM blipbox, but I allready have some ideas.

Before I start assembling, I have one more question regarding cutting my fork and mounting the expander into it.
The stem clamping area is 29.85mm high. The expander requires 2.05mm and the red top cap addtional 1.25mm.
If I now assume that there is no gap between expander and red cap, then I still have 26.55mm "real clamping area".
But my expectation is that I need a small gap to realize a preload to the stem.
Is this right?

What is your recommendation?
Do you have a cut through picture to explain this situation?

Thanks in advance.

Jan

Sorry, I made a mistake, the expander is housed completely in the fork. In this case I will have enough clamping surface to mount the stem.
Last edited by: Janlk: May 5, 19 13:02

Edit Log:

  • Post edited by Janlk (Big Pines) on May 5, 19 13:02: Thinking Error correction