This rotor and adpt. are designed to be used with the large Mallory pro cap in a left or right hand rotation application. It includes the base adpt. made from durable plastic that the rotor interlocks onto then the rotor uses nylon screws to prevent the rotor from lifting off the adpt.
The rotor is made from the same durable plastic as the adpt. and uses a brass rotor tip to get the most juice to your plug wires. Works with most all Mallory Super and Sprint mags.
Racer must choose from drop down menu Left-hand (CCW) rotation or Right-hand (CW) rotation when purchasing.