#### Functional Artist

##### Well-known member

1.) Motor RPM's

2.) Gear Ratio

3.) Tire Circumference

By inputting your

...motor RPM's

...gear ratio

...& your tire circumference

in to this equation, you can figure out what your, potential, MPH would/could be

MS/GR=ASxTC=IM/FT=FMxHR=FHxMM= MPH

Motor Speed/Gear Ratio=Axle Speed x Tire Circumference = Inches per Minute traveled/Foot(12) = Feet per Minute traveled x Hour(60) = Feet per Hour traveled x MPH Multiplier(.000189) = Miles Per Hour

* Using e-Lemon-aid, as an example

...@ 24V (2,500 rated RPM's)

...an 8:1 gear ratio

...& tires with ~32" circumference

2,500/8 = 312.50

312.50x32" = 10,000.00"

10,000.00"/12 = 833.33

833.33x60 = 49,999.80

49,999.80x.000189 = 9.45 MPH

Motor speed is (2,500 rpm's) divided by the gear ratio (8) = axle speed (312.50)

Axle speed (312.50) times the wheel circumference (32") = inches per minute traveled (10,000.00")

Inches per minute traveled (10,000.00") divided by inches in a foot (12") = Feet per minute traveled (833.33)

Feet per minute traveled (833.33) times minutes in an hour (60) = feet per hour traveled (49,999.80)

Feet per hour traveled times miles per hour multiplier (.000189) = 9.45 MPH

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