Division 6.6.8.1 For radial ply and bias belted tyres (mm):F1

1,5 ≤ (A+B) ≤ 5 (minimum 1,5 mm; maximum 5,0 mm)

A ≥ 1A 1A 1A 1A 1 (minimum 1,0 mm)

B ≥ 0.5B 0.5B 0.5B 0.5B 0.5 (minimum 0,5 mm)

P.D. = Pattern depth

X = Buff line

A = Average thickness of new material under patternP.D. = Pattern depth X = Buff line A = Average thickness of new material under patternP.D. = Pattern depth X = Buff line A = Average thickness of new material under patternP.D. = Pattern depth X = Buff line A = Average thickness of new material under patternP.D. = Pattern depth X = Buff line A = Average thickness of new material under pattern

B = Minimum thickness of original material above belt after buffing