PEM 61017 QuickChange Gears Set 17 4.11/4.76 and 4.86/5.63 Quick Change PEM QuickChange Gears Set 17 4.11 Ratio 4.76 / 3.55 4.86 Ratio 5.63 / 4.19 Made from high grade gear steel Hobbed and fully heat treated 10 Spline Bryke Racing Part #: PEM 61017.
