Qty. 1 2 3 4 5 6 7 8 9 10 Add to Cart Carb Cap Titanium Mini 63mm Black Leaf - is currently on backorder. You may still purchase now though and we'll ship as soon as more become available. Black Leaf Branded grade 2 63mm titanium carb cap. - 19mm outter. - 16mm & 12mm inner.