I currently have a new welded stoke stroke crank with a set of 66.5 cylinders that will need to be resleeved next time I rebuild. I was looking on the TDR website and found a set of 68-70 mil sleeves that come ported for a decent price. Has anyone every used them and if so how much machine work must be done to install them. I have a machinist that owes me a favor so I was think about doing this instead of getting new cylinders. They also have a sleeve that starts at 70 and can be bored to 72. If anyone has every used these I would like to here some input on how they ran. Looking to use a stock head, stock carbs bored, and FMF fatty pipes in my YFZ chassis. How many cc s would a 70 mil bore on stoke stroke be?
http://www.bansheedepot.com/products.asp?cat=45