11-03-2018, 06:00 PM
If there is indeed a finish over the brushed aluminum then you might try some sort of paint detailing product such as those designed to remove light scratches from clear coats like a polish or glaze or something along those lines. These options more or less serve to fill in the micro defects in the clear coat making them invisible to the eye. Start with the least aggressive option (from an "abrasive" standpoint) to avoid making things worse and then work your way towards the more aggressive end of the scale. I've been very surprised at what defects I've been able to get rid of using these sorts of products in the past. But then the surfaces I was treating were more or less perfectly smooth underneath so I'm not sure how the brushed surface underneath would impact the results. Just a thought.
As far as the squealing brakes go, the only thing I can think of that might be a possibility is that somehow the front edge of the pads might be making contact with the rotor before the back edge of the pads. On a bicycle with rim brakes you're supposed to adjust the blocks on either side of the rim to make sure that the trailing edge of the block makes contact before the leading edge or else it can lead to a lot of squealing. In that light I suppose that you might investigate whether or not there is any way to insert a very thin shim between the trailing caliper piston and the back of the pad in case something similar is happening. Yeah, i know that I'm full of crazy thoughts tonight, what can I say. In the case of my thoughts you get what you pay for, lol.
As far as the squealing brakes go, the only thing I can think of that might be a possibility is that somehow the front edge of the pads might be making contact with the rotor before the back edge of the pads. On a bicycle with rim brakes you're supposed to adjust the blocks on either side of the rim to make sure that the trailing edge of the block makes contact before the leading edge or else it can lead to a lot of squealing. In that light I suppose that you might investigate whether or not there is any way to insert a very thin shim between the trailing caliper piston and the back of the pad in case something similar is happening. Yeah, i know that I'm full of crazy thoughts tonight, what can I say. In the case of my thoughts you get what you pay for, lol.