Evolution Catalog (2026)

Ring Gears & Conversion Kits Our ring gears and starter jackshaft components are manufactured from aircraft quality steel, heat treated and ground to meet exact specifications, to ensure maximum strength and durability. Engineered for seamless compatibility with O.E. clutch baskets. Backed by a 3-Year Limited Warranty. Complete Ring Gear Kits

Ring Gear /Pinion

Part Number 1010-1011 1010-1061 1010-1031 1010-1001 1010-1051 1010-1021 1010-1000 1010-1041 Part Number 1010-1121 1010-1151 1010-1157 1010-1111 1010-1141 1010-1155 1010-1110 1010-1131 Part Number 1010-1076 1010-1075 1010-1070 1010-1071 1010-1081 1010-1085 1010-1086 1010-1091 1010-1101 1010-1109

Complete Ring Gear kits include starter ring gear, complete jackshaft assembly with matching pinion gear, mounting hardware, and instructions.

Application

’98-’06 Big Twin (Except ’06 Dyna) ’98-’06 Big Twin (Except ’06 Dyna) ’98-’06 Big Twin (Except ’06 Dyna)

66T 84T

9

10 10

102T

’94-’97 Big Twin ’94-’97 Big Twin ’94-’97 Big Twin ’90-’93 Big Twin ’90-’93 Big Twin

66T 84T

9

10 10

102T

66T 84T

9

10

1010-1000

Ring Gear /Pinion

Ring Gear Conversion Kits Starter Ring Gear Conversion kits come with matching starter pinion gear, mounting hardware, and instructions.

Application

’98-’06 Big Twin (Except ’06 Dyna) ’98-’06 Big Twin (Except ’06 Dyna) ’98-’06 Big Twin (Except ’06 Dyna)

66T 84T

9

10 10

102T

’94-’97 Big Twin ’94-’97 Big Twin ’94-’97 Big Twin ’90-’93 Big Twin ’90-’93 Big Twin

66T 84T

9

10 10

102T

66T 84T

9

10

Ring Gear

1010-1110

Application

Replacement Ring Gear Replacement Ring Gear includes mounting hardware and instructions

’65-Early ’84 Big Twin (Evo-Ind Basket) ’65-Early ’84 Big Twin (D.E. Weld-On)

66T 66T 66T 66T 66T 84T 84T

Late ’84-’89 Big Twin

’90-’97 Big Twin

’98-’06 Big Twin (Except ’06 Dyna)

’90-’97 Big Twin

’98-’06 Big Twin (Except ’06 Dyna)

’90-’97 Big Twin

102T 102T

’98-’06 Big Twin (Except ’06 Dyna)

1010-1071

Evo-Ind Sportster Basket

78T