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Question:

what is the difference between carbon fiber/stainless steel and aluminium Motorcycle Exhaust systems?

Looking at getting a new motorcycle and looking at the custom exhaust systems but i‘m not a metal worker so I don‘t know the difference between Carbon Fiber, Stainless Steel and Aluminium. Which is the better metal, what will last longer, what will break easy, what is cheaper to replace, how does it react to hot and cold weather, can it handle expansion to heat and shrinkage to cold, What is the lighter exhaust etc. I‘m not sure on all of the specifications of the metals I could just google it but I‘d rather hear it from someone with experience with these metals and exhausts. If I have missed anything MENTION IT!

Answer:

Carbon fibre isn't a metal. It's a composite fibre. It's extremely light but incredibly strong. It's pretty much impervious to corrosion but tends to shatter if you drop the bike. It can't readily be repaired. It's horribly expensive. Stainless steel is steel alloyed with chromium. It's a good material,for exhausts. Reasonably priced. That gives it great corrosion resistance and heat resistance but it's heavy. It lasts forever near enough, and can be polished. It can discolour a bit with exhaust heat but it's cosmetic only. Aluminium is a light metal but not as light as carbon fibre. It's relatively corrosion proof but needs looking after more than the others unless it's anodised ( a hard oxide coating applied chemically to the surface which can be coloured. Unlike carbon which is black and s/steel which is self coloured) cost is similar to stainless steel. Carbon and aluminium are usually only used to make the silencer/muffler. They're no good for headers or down pipes. Aluminium would get too hot and melt, carbon would be unable to cope with the movement Of the engine in the chassis. The rest of the exhaust system would be stainless steel, titanium or chrome plated or black painted mild steel.
Everything covered is mentioned in the paperwork that you got with the tire purchase yet failed to read.
one of they blew up on me yesterday on Highway i drove about 1000 miles on it How did you drive 1000 miles on a blown tire? Call the WALMART where you bought the tires, or read the frikkin' paperwork.
Carbon fiber is lighter but generally more expensive. Any performance difference is in the design not the materials.
Stainless Steel Motorcycle Exhaust

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