Using maths to calculate chain length? Singlespeed.
My chainstay is 16.92 inches, my rear cog has 18 teeth and my front chainring has 42 teeth. Using maths, I can calculate the perfect chain length.
16.92 * 2 = 33.84
18 / 4 = 4.5
42 / 4 = 10.5
33.84 + 4.5 + 10.5 + 1 = 49.84
However, since I am converting to a singlespeed, how does throwing a chain tensioner into the mix affect this calculation? The equation tells me I need 50 links, but if I need to use a chain tensioner, will this be too tight?