PEM 61019 QuickChange Gears Set 19 4.11/4.89 and 4.86/5.78 Quick Change PEM QuickChange Gears Set 19 4.11 Ratio 4.89 / 3.45 4.86 Ratio 5.78 / 4.08 Made from high grade gear steel Hobbed and fully heat treated 10 Spline Bryke Racing Part #: PEM 61019.
