Calculating the band and rim of a wheel is important for making certain correct fitment and efficiency. The band is the interior circumference of the wheel, whereas the rim is the outer circumference. The distinction between the 2 measurements is the tire’s sidewall peak.
To calculate the band, measure the space across the within the wheel, from one bead seat to the opposite. To calculate the rim, measure the space across the outdoors of the wheel, from one sidewall to the opposite. The distinction between the 2 measurements is the tire’s sidewall peak.