Adding to our Flux insert line for the DluxFab HC 1.9 wheels, we introduce the 4.19 option! We are only offering this in soft, aimed towards lightweight rigs, perfect for UTB18 and sub 7lbs rigs. These inserts replace the center clamp ring as the clamp ring has been designed into the insert itself! The Flux inserts are keyed around the bolt protrusions and get clamped by the tire and wheel as well, giving you the Ultimate Performance Insert. (Insertz are printed in our brand colors. They will come in one of 2 colors, random selection, green or purple) ***Sold in sets of 2 ***All products are made to order. Please check the header on the main page for approximate lead times. Thank you for your support and patience - FlubRC