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2019 AHRMA Handbook: Approved Update to Rule 10.4.3 Classic Sixties

By |2018-12-31T15:06:35+00:00December 31st, 2018|2019 Handbook, Rules|

10.4.3 Classic Sixties - updated verbiage: Triumph T100 unit-construction. Triumph unit-construction twins must include the following:  The cylinder head must [...]