PEM 61012 QuickChange Gears Set 12 4.11/4.58 and 4.86/5.42 Quick Change PEM QuickChange Gears Set 12 4.11 Ratio 4.58 / 3.68 4.86 Ratio 5.42 / 4.36 Made from high grade gear steel Hobbed and fully heat treated 10 Spline Bryke Racing Part #: PEM 61012.
