DESCRIPTION

Aluminium Alloy 520 (5/8" x 1/4") rear sprockets for the Manx Norton & Seeley Conical rear hubs.

Machined in house with the correct (weird, imperial) stud centres. Not anodised as is correct for the period. 

Manx Sprockets use 6 x 1/4" dowel holes plus 6 x 5/16" stud holes.

Seeley sprockets use 12 x 1/4" allen screw holes, all on the same PCD.