1st Gear Set. Fits 4Spd Big Twin 1959-1986. 2.44 Ratio.

* 17T x 20T mainshaft 1st gear cluster with a 24T countershaft 1st gear.

* Installation in 1980-86 4sp Big Twin requires purchase of a 21 tooth countershaft 2nd gear AP-202160.

* Best choice for Superglides, choppers and lighter bikes. This is a no clunk 48 mph, 1st gear.

* With Andrews 4 speed gears, transmissions last longer, shift faster, and just plain run better.