New BSA Singles Kickstart Quadrant. Replaces BSA part number 57-4070 - quality is superior over the original BSA kickstart quadrants - hardened steel. Needle bearing not included. Quadrant is the 3/4" variety suited for BSA & Triumph unit singles (B25, TR25W, B44, etc) from 1968-1970 only. Please refer to your parts catalog for proper fitment.
•Made in England
•O.E.M Part number is 57-4070, T4070, 57-2643, T2643, 57-4592 or T4592