Personally, I love aluminum body work in either form, raw, wirebrushed, mirror polished, anodized, partially painted. Not only because it’s a noble and beautiful material that will never rust but also because it will make your bike much lighter. There are a few available bolt-on gas tanks and fenders on the after-market scene, but sometimes the issue you may have is the strength of the welds and thickness of the aluminum used.
And the sad thruth is that some of these parts may not hold up to vibrations and road abuse. For fenders a good address is 7 Metal West. Dan Knoblauch handmake them starting from a .125” thick aluminum sheet where many competitors use only .050”. They are 1-piece fabrication and when formed there is no weld seam to sand and fill. They weight about half the weight of a comparable .090″ thick steel fender and help you save 2 to 3 lbs. These ribbed fenders are offered in 5″ wide, 37″ in length, 26″ in diameter for a 16″ wheel and 27″ in diameter for a 18” wheel. Starting at $140.00. Call Dan on my behalf at 414.477.0380 or visit 7 Metal West.