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Wheel diameter for 225x50x16 is calculated (widthxprofile/50)+(wheel diam*25.4) = 631.4 mm therefore circumference (pi x diam) = 1982.6 mm which is equal to 0.001232 miles to get top speed, rev limit x gear ratio x final drive x circumference in this case, for an NA in 2nd gear and 7200 rpm would be 7200 x 1.93 x 4.08 x 0.001232 miles or 69.84 miles per hour. (for other tire widths change above numbers) (for other gears or TT the following is relevant: gear ratios: 1st 3.21 2nd 1.93 3rd 1.30 4th 1.00 5th 0.75 final drive NA: 4.08 TT: 3.69 -------
Chris 95 TT red Stage >I |