I've been in touch with Rize about the *waterfall* noise on my X. At first Pete said it's normal, and would probably go away or lessen over time. I cleaned the rotors with alcohol and it helped, but it came back. I emailed again and got a response from Mark. So, that lead me to believe it's PROBABLY NOT a *bed in* issue.
Here's my Mark's response:
*****Thank you for the update. The sound that the brakes make is actually normal on our bikes. Keep in mind that E-bikes are a bit heavier overall and typically travelling at faster speeds. When applying firmly on all of our bikes, it certainly does make a noise that's not the most pleasant. The ceramic metal compound brake pads are also a type that works better in wet conditions, but overall are a bit noisier. Here are some helpful videos regarding brakes on bikes!
It is normal to have those sort of sounds on our brakes. When you apply the brakes quite hard, there is a gurgling water flushing around sound that it makes we are well aware. Tektro has not recalled these models and they do seem to work great, it's just that it does make a sound when pressing firmly. You do not have to be concerned about the noise as it is normal, and if you wear out the coating quite evenly, it should get a bit better after it gets worked in! ***
So my question is:
Will a change of pads fix the issue, or is it a rotor issue? Does anyone know best replacement pads?