Evolution Catalog (2026)

Replacement Primary Chains We are proud to offer replacement primary chains from Regina. They are the same high-quality chains that are O.E from the factory. Available in different lengths to suit many combinations of gearing for Big Twin and Sportster.

Part Number 1011-2056 1011-2016 1011-2061 1011-2041 1011-2051 1011-2021 1011-2015 1011-2001 1011-2031 1011-2017 1011-2011 1011-2071 1011-2072 1011-2073 1011-2074 1011-2056 1011-2066

Application

Length

Big Twin Big Twin Big Twin Big Twin Big Twin Big Twin Big Twin Big Twin Big Twin Big Twin Big Twin Sportster Sportster Sportster Sportster

74L 76L 78L 80L 82L 84L 86L 88L 90L 92L 94L 90L 92L 94L 96L

Big Twin

530 ZRT Z-Ring 530 ZRT Z-Ring

120L 130L

Power Drive Rear Wheel Sprockets Our rear wheel sprockets are machined in house from billet steel and heat treated to stand up to extreme horsepower conditions. They are “Zero Offset” and require a wheel adapter to mount to the standard factory bolt pattern. Two styles available: So-Cal and Intruder in chrome finish. Will not fit Cush drive applications.

Sprocket So-Cal Intruder

47T 48T 49T 51T 52T 53T 55T 47T 48T 49T 51T 52T 53T 55T

1012-1803S 1012-1805S 1012-1807S 1012-1809S 1012-1811S 1012-1812S 1012-1814S

1012-1802S 1012-1804S 1012-1806S 1012-1808S 1012-1810S 1012-1813S 1012-1815S

Intruder

So-Cal

Power-Drive Chain Drive Conversion Kits Our Chain Drive Conversion kits feature our rear wheel sprockets, a top-of-the-line Regina Z-ring Chain, and a 0.500” offset rear wheel adapter kit to make a top-quality conversion.

Sprocket So-Cal Intruder

1012-1803 1012-1805 1012-1807 1012-1809 1012-1811 1012-1812 1012-1814

1012-1802 1012-1804 1012-1806 1012-1808 1012-1810 1012-1813 1012-1815

Please check rear wheel alignment needs BEFORE ordering parts. Does not work on wheels with cush drive.