I have used those before and they worked well and quite solid at 23mm. They are quite affordable here in Malaysia.
I have since changed to the 22mm Whiteline simply because there were cases of failure. They literally broke in half. Apparently measures were taken to improve quality on the current units. I didn't want to find out the hard way which batch I had.
That being said, when I replaced the Ultra Racing with my current Whiteline, they were in good shape. And I feel the 1mm I lost did make it less sharper. Or maybe it's just in my head.
Last edited by NikAzwaa; 26/01/2013 04:52. Reason: Typo