NOS powerblade for Keihin PWK39 carburetors.
The powerblade slices the carburetor venturi into 2 smaller venturi's, increasing the air speed. This results in more torque, better throttle response and increased low-end power. This is a plug-and-play device, no modifications or re-jetting required and installs in minutes.
This fits: Keihin PWK39 carburetors.
note: some of these show some surface rust from being stored for a long time, as can be seen on the images. It's completely harmless and doesn't affect performance.
Complete as pictured.