This bumper was developed to be in compliance with the 2024 PNWC Bumper Rules.  The new requires there to be a 2mm gap between bumper and body if the bumper is made out of CF.  This bumper retains the same shape as the RX528 Mako Bumper, but also has a nested, front TPU liner which satisfies the rule as the leading edge is now made from flexible, rubber like material (albeit, still super rigid). 
 
This bumper is slightly heavier, but not by much. We recommend using CA to attach the bumper more securely to the CF part.