Crankshaft main bearing ball race suitable for the following models:
Triumph 3TA, T21, T90 350cc Unit twins Crankshaft D/S
Triumph 5TA, T100, TR5 500cc Unit twins Crankshaft D/S (up to 1968)
Triumph T120, TR6, 6T 650cc Unit twins Crankshaft T/S (metric bearing 1972-)
Triumph T140, TR7, TR7T Trail 750cc Unit twins Crankshaft T/S (1973 on)
OEM: 60-4167, 01-7822, 70-3835
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