as for the regular and spaced chains ill have to leave that up to someone else! as for 106 and 120 link that is how many links of chain you are getting, (length of chain) I believe. hope that helpscan someone explain to me the difference in #35 chains? what Is the diff. in reg and spaced chain? and then you see 106 links and 120 links and so on. HELP, feelin like an idiot the more I get into this racin thing. But DAMN is it fun.
I could see that as how it’s an outboard sprocket. I shortened my crank to put the sprocket where a stock one would be and it’s been fine all year. It may break the crank next time out, but so far so good.They sell 9-10 tooth conversion kits , they were made in bully style.
These tend to break cranks or cause other problems .
219 chain may be a benefit as its slightly smaller .
Heavy duty gear guard or some type jackshaft .