2.60 1st.; 1.23 3rd. gear ratio. Kits include 6 gears; 2 shifter clutches and 2 forks. High quality nikkel alloy steel; heat treated and shot peened. 2.44/1.1.23 ratio are usually best suited for lighter bikes (lower RPM at higher speed); 2.60/1.35 ratio gives a better pull at the traffic light for heavier bikes as Electras (higher RPM at lower speed). Additional items may be required and purchased separately. Note: A lower gear ratio number gives a lower RPM. Knowing this you can pick the gear combination that suits your needs best.