How to polish aluminum bicycle parts - Sakae MTS-120 stem
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In this video I’m going to explain how to polish aluminium bicycle parts. And in this case we’re going to polish a Sakae MTS-120 stem from 1986. As is the bike, the stem is in pretty bad shape with deep scratches and nicks all over.
If you polish aluminium bicycle parts you have to take the necessary steps to achieve the ultimate result of a mirror-finish. Obviously a good cleaning is in order. After which you sand the aluminium in a number of steps. Each step involves an increase in the number that represents the sandpaper grit. The final step involves using a machine polisher and both a cutting- and polishing compound.
Tools used:
Machine polisher: www.hbm-machin...
I've also written about blog post with more information. If you want to read this article go to www.restoratio...
Visit my website for more bike restoration tutorials: www.restoratio...
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Music is from the TH-cam Audio Library
Song is "Song of Sadhana" from Jesse Gallagher - แนวปฏิบัติและการใช้ชีวิต
Get a bench .
Would it improve the result?
i did this, and i understand why you would go machine after sanding so much manually. That part is just so crushing if you have other stuff to do in the household or on a timecrunch.
You can just paint it using chrome paint, it wouldn't take so long,.🤣
You can just paint it using chrome paint, it wouldn't take so long,.🤣
i am of a different school of thought but I agree with this method also. I personally don't mind the nicks especially if they are on the inside, i polish with 4x0 steel wool then fibercloth + aluchrom cream. A stem is easy for manual labor, but all the other parts the machine and compound do a better job indeed. I have a machine table grinder that is with stones, not sure if i can mount cotton disks on, but i'd love to try.
that table grinder sounds so "quiet" and is so stable compared to mine ..well i have to change the stones for cotton disks
I just have to have alloy on my bikes, hate the new saturn black look
Good content sir
Thank you
Perfect results brotha
Appreciate it
The bench wheel is week i guess 150 watt no more. You press and it is stopped. For best results should be at least 350 watt for household Jobs. If you dont want to waste your time. Friendly advice
It's a 350 watt. I use a lot of pressure.
Nice stem...pls give it to me
Wow nice 1
Can I use a dremel to polish the stem? It's hard to find the fabric wheel that fist the dremel
I have both a dremel and polishing wheel. The wheel is a thousand times more effective and easy to use than the dremel. And believe it or not it was also cheaper to buy.
I use a dremel to polish nooks and crannies. For instance I used it for a pair of pedals to get in between the axle and the rest of the platform: th-cam.com/video/R8zn5ZTGmO8/w-d-xo.html&ab_channel=restorationdotbike
I had a polishing wheel before I bought a dremel, and I was disappointed with how little pressure you can use before the head simply stops spinning. With a relatively large surface of the stem, you want a smooth and even result. I firmly believe you can only achieve this with a polishing wheel.
@@restorationdotbike are they fabric pads on the polishing wheel? What kind are they? and do you use any compound?
Oddly satisfying. Thanks for posting.
Glad you enjoyed it
Nice job!
Thanks!
I hear it's an auto shop trick to use sandpaper soaked over night. no idea if that is relevant here, but supposedly it's a trade secret for guitar repair too
I don't think any form of hand sanding can ever provide a better result than machine polishing.
You do good work
Can you do this to modern black-colored bike parts too? For example, turn a Shimano black (or the grey one) 105 (r7000) crankset into polished alu
black is not the natural color of metal or alloys. it's either achieved through paint or anodization. you can polish those two to the point where they'll be completely removed. keep in mind that paint and/or anodization offers protection against corrosion as well. polished aluminium will prove to be more prone to wear and tear from the elements (in the long run)
Is there a way to re-anodize or apply some form of clear coat protection after polishing aluminum? Or, can you simply maintain the finish by keeping it clean and dry?
@@funkadelph1852 lanolin or ideally 2k clear, but 1k will work. It will scratch easily though
What a beautiful restoration! I was pleasantly surprised by the results.
Any recommendations and/or considerations for getting a polishing wheel for this type of project? Thanks! Have a great week :)
Not really. Mine is relatively cheap, around 60 dollars, but with enough patience and pre-sanding steps you can see it works fine. So my recommendation would be to take your time, which is kind of essential for any restoration I guess
@@restorationdotbike thanks for the info, cheers
Do you need to apply anything after sanding to prevent rust？🙇🏻♂️🙏🏻
If it's steel, the answer is yes. The title of this video has "aluminium" in it.