Triumph / BSA Crankshaft Main (Ball) Bearing (1) - 70-1591 - Choose Bearing Type STD 9" eye-to-eye with a 5/16"

9" eye-to-eye with a 5/16" top and bottom bushing and a 110lb internal spring

Dynamos where fitted to a wide rang of Triumph

M Part number is 47205/16 or 47239

FERODO shoes are the best quality and the EMGO are the "economy" variety to fit 7" rear brake drums

Triumph / BSA Crankshaft Main (Ball) Bearing (1) - 70-1591 - Choose Bearing Type STD 9" eye-to-eye with a 5/16"Today we would like to offer you new RHP crankshaft ball bearings for both Triumph & BSA twins. To be clear, we offer 2 types of ball bearings with the CN & C3 racing for 2 different applications both bearing measure the same @ 1. 1250" (ID), 2. 8125" (OD) & . 8125" (wide) "C3" crankshaft ball bearings fitted to Triumph 650 unit twins on both the drive side and timing side from 1963 1965 and also Triumph 500 & 650 pre unit twins on both sides. BSA A50