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Bicycle Trail Calculator

Calculate your bike's trail

head angle (degrees)
fork offset (mm)
bead-seat diameter (mm)
tire width (mm)
calculated wheel diameter (mm)
calculated trail (mm)
calculated flop (mm)

(use the up/down cursor keys to increment/decrement values)

Calculate your bike's trail

head angle (degrees)
fork offset (mm)
bead-seat diameter (mm)
tire width (mm)
calculated wheel diameter (mm)
calculated trail (mm)
calculated flop (mm)

(use the up/down cursor keys to increment/decrement values)