Low Fitting Motorcycle Helmet Mat Black Chopper Harleys Bobbers Smallest Helmet. This one Matte black ask about other colours. Sizes are Small see below. S 54 -55 21 5/8-22. M 56-57 22 3/8-22 3/4. L 58-59 23 1/4-23 5/8. XL 60-61 24-24 3/8. No more Mushroom head. Original TT&Co open face low profile Chopper Helmet […]