Quote:
Originally Posted by 03boxster-S
some tracks require the Brey Krause Roll Bar Extension regardless of driver height, like the track near me (Virginia Int'l Raceway); but most will let you drive as long as the top of the helmet is below the top of the roll-bar.
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2 in mim distance between the top of the helmet to the top of the roll bar. Hence extensions.Belts stretch.