Product information
TRIUMPH MAIN BEARING
RHP MJ 1 1/8" C3 BALL
pt 70-1591
This genuine top quality crankshaft bearing was fitted to all Triumph 500 and 650 Pre-Unit twins on the drive side from 1938 to 1962 and timing side from 1955 to 1971.
After engine no. GE 27029 a metric bearing was fitted to the timing side.
RHP are renowned for their precision made bearings and when fitted correctly and oil changed at recommended intervals could last a lifetime. I've been fitting and using RHP bearings in road and competition machines for the last 30 years and although they are more expensive than some other brands they have stood the test of time.
Technical specifications
| Condition | New |
| Weight | 0.4kg |