The RevPro rear wheel arch with 48 teeth in black from brands was specially developed for Harley Davidson FX models from the years 1985 to 1994. This high -quality pinion is made of 7075 T6 aluminum, a material that is also used in the aviation industry to ensure maximum stability and durability. It is ideal for use with 530 chains and offers a precise fit thanks to the standardized bore pattern from Harley-Davidson.