MOWER RACING TIPS
PULLEY RATIOS
"CHANGES IN SPEED BASED ON 4000 RPM AND 18" TALL TIRE.
IT DOES NOT TAKE INTO ACCOUNT ANY OTHER GEAR REDUCTION,
SUCH AS TRANSAXLE FINAL DRIVE RATIO, OR SPECIFIC GEAR RATIO SELECTED"
TRANS PULLEY | PULLEY RATIO | MPH |
3 inch | 1.000 | 21.50 |
3.5 inch | 0.857 | 18.43 |
4 inch | 0.750 | 16.13 |
4.5 inch | 0.667 | 14.34 |
5 inch | 0.600 | 12.90 |
5.5 inch | 0.545 | 11.72 |
6 inch | 0.500 | 10.75 |
6.5 inch | 0.462 | 9.93 |
TRANS PULLEY | PULLEY RATIO | SPEED |
3 inch | 1.167 | 25.09 |
3.5 inch | 1.000 | 21.50 |
4 inch | 0.875 | 18.81 |
4.5 inch | 0.778 | 16.73 |
5 inch | 0.700 | 15.05 |
5.5 inch | 0.636 | 13.67 |
6 inch | 0.583 | 12.53 |
6.5 inch | 0.538 | 11.57 |
TRANS PULLEY | PULLEY RATIO | SPEED |
3 inch | 1.333 | 28.66 |
3.5 inch | 1.143 | 24.57 |
4 inch | 1.000 | 21.50 |
4.5 inch | 0.888 | 19.09 |
5 inch | 0.800 | 17.20 |
5.5 inch | 0.727 | 15.63 |
6 inch | 0.667 | 14.34 |
6.5 inch | 0.615 | 13.22 |
TRANS PULLEY | PULLEY RATIO | SPEED |
3 inch | 1.500 | 32.25 |
3.5 inch | 1.286 | 27.65 |
4 inch | 1.125 | 24.19 |
4.5 inch | 1.000 | 21.50 |
5 inch | 0.900 | 19.35 |
5.5 inch | 0.818 | 17.59 |
6 inch | 0.750 | 16.13 |
6.5 inch | 0.692 | 14.88 |
TRANS PULLEY | PULLEY RATIO | SPEED |
3 inch | 1.667 | 35.84 |
3.5 inch | 1.429 | 30.72 |
4 inch | 1.250 | 26.88 |
4.5 inch | 1.111 | 23.89 |
5 inch | 1.000 | 21.50 |
5.5 inch | 0.909 | 19.54 |
6 inch | 0.833 | 17.91 |
6.5 inch | 0.769 | 16.53 |
TRANS PULLEY | PULLEY RATIO | SPEED |
3 inch | 1.833 | 39.41 |
3.5 inch | 1.571 | 33.78 |
4 inch | 1.375 | 29.56 |
4.5 inch | 1.222 | 26.27 |
5 inch | 1.100 | 23.65 |
5.5 inch | 1.000 | 21.50 |
6 inch | 0.917 | 19.72 |
6.5 inch | 0.846 | 18.19 |
TRANS PULLEY | PULLEY RATIO | SPEED |
3 inch | 2.000 | 43.00 |
3.5 inch | 1.714 | 36.85 |
4 inch | 1.500 | 32.25 |
4.5 inch | 1.333 | 28.66 |
5 inch | 1.200 | 25.80 |
5.5 inch | 1.090 | 23.44 |
6 inch | 1.000 | 21.50 |
6.5 inch | 0.923 | 19.85 |
TRANS PULLEY | PULLEY RATIO | SPEED |
3 inch | 2.167 | 46.59 |
3.5 inch | 1.857 | 40.31 |
4 inch | 1.625 | 34.94 |
4.5 inch | 1.444 | 31.05 |
5 inch | 1.300 | 27.95 |
5.5 inch | 1.182 | 25.41 |
6 inch | 1.083 | 23.28 |
6.5 inch | 1.000 | 21.50 |
TRANS PULLEY | PULLEY RATIO | SPEED |
3 inch | 2.333 | 50.16 |
3.5 inch | 2.000 | 43,00 |
4 inch | 1.750 | 37.63 |
4.5 inch | 1.556 | 33.45 |
5 inch | 1.400 | 30.10 |
5.5 inch | 1.273 | 27.37 |
6 inch | 1.167 | 25.09 |
6.5 inch | 1.077 | 23.15 |