mix

if you can think of a better title let me know, want to start a sticky about amounts of engine wear after te1ardowns of using brands/types of oil at a given ratios. basically evaluating oil quality, I know it isn't practical to do a good side by side test with all the possible combinations, and...

So me being new here and being to close to completing my first build. A question about oil? I've gone through the forums time and time Reading the thread about opti 2 oil and other oils but really I cant decide which i should use. Personal opinions are wanted please.

Hey all, I'm new here. I bought a used motorized bike from someone nearby off of Craigslist and I've had nothing but problems since then. Luckily the man also included a box of parts, among which was an entire new engine assembly, chain, tubes, etc. My brother found a nice mountain bike and...