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Messages - Ultramic

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1
If you are uncomfortable with the filed down c-ring, ask the seller to send you only the c-ring that comes with the handlebar/frame package. It's metal and sits much lower - of course you need to reconnect and rebleed the brakes though.

2
I experienced the same issue trying to build up a Chinese frame using a different handlebar to the stock one. The solution was to ask the frame seller to send me the stock c-ring only and then use my preferred handlebar.

In my scenario, it was clear that the non stock c-ring is much thicker (hence the gap to the frame) versus the stock c-ring which was flatter (and it was also metal).

It will all depend on your setup though as the c-ring typically has a notch which the headset cover connects to so it turns in tandem with the handlebar.

3
Thanks for your reply, it confirms my thoughts that the headset is just a badly designed one and I should look at other options. I can confirm the crown race is needed as the bottom of the steerer is not tapered and is right angled and therefore needs a crown race to contact the lower bearing properly.

Anyone else who has built on this frame with the supplied headset and can comment would be much appreciated.

4
I hope someone can help me with this frame build. I recently purchased the version sold by "Surprise store" on AliExpress. My issue is installing the headset where there is a gap between the lower bearing and the fork and also a bigger gap between the frame and the headcover for the top bearing - this is using the supplied headset. With the top bearing in particular, this sits flush with the frame and when you put the the compression ring on, it sits too high the the headset cover leaving quite a big gap. Any advice is appreciated.


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